Quick read / the essentials about our Scilla Bulbs
At Floriverse, a specialist wholesale supplier of flower bulbs , we provide professional floriculturists with a wide selection of Scilla bulbs , an essential species for diversifying spring blooms. Ideal for both open-field and indoor cultivation, Scilla appeals with its early flowering, its iconic blue hues, and its ability to naturalize quickly. Performance-conscious growers can purchase certified organic, untreated, or conventional Scilla bulbs depending on their growing method and market requirements.
Our expertise as a wholesale supplier specializing in flower bulbs allows us to offer rigorously calibrated bulbs (8/+ to 10/+ cm depending on the species) guaranteeing flowering from the first season. Whether it is Scilla siberica , bifolia or campanulata , each bulb selected by Floriverse has excellent hardiness, good vase life, and remarkable adaptability to well-drained soils. Buying Scilla bulbs from Floriverse means benefiting from smooth logistics, dedicated technical support and competitive prices on professional volumes. Our batches are available in packaging optimized for horticultural operations, with fast delivery throughout France. Trust a wholesale supplier specializing in flower bulbs to integrate Scilla into your production ranges in a reliable and profitable way.
Introducing our range of Scilla flower bulbs
At Floriverse, a specialist in flower bulbs for professionals, we offer a wide range of Scilla flower bulbs suitable for all technical routes. Our offer includes bulbs certified Organic Agriculture , bulbs not treated after harvest and conventional bulbs. This diversity allows floriculturists and specialized producers to adapt their cultivation choices according to their market, their practices and regulatory constraints.
Scilla's wide range of organic flower bulbs meets the requirements of eco-responsible supply chains and contributes to enriching the local floral offering. All our bulbs come from specialized nurseries and are rigorously selected for their hardiness, flowering potential, and adaptability to professional cultivation.
Market approach: Scilla cultivation in France
The market for cut flowers of Scilla , particularly Scilla peruviana , presents a growing potential for French producers. Its commercial availability concentrated between April and May corresponds to a strategic market window for florists looking for originality. This species, underrepresented in the current offer, is part of a strong trend towards diversification and relocation of floral production .
In 2023, France had approximately 500 active cut flower farms. While the trade balance remains in deficit, with 85% of cut flowers imported, the post-COVID recovery has fostered increased interest in local production. The sector's turnover increased by 17.9% between 2019 and 2021.
Scilla peruviana is distinguished by:
- its flowering from April to May ,
- a stem height of 20 to 30 cm ,
- excellent vase life (more than 10 days),
- and a highly sought-after deep blue spherical inflorescence .
The bundle format of 50 to 100 stems is well suited to direct or intermediary sales channels. The reference price in the United Kingdom reaches €0.44 excluding VAT per stem (May 2025), which confirms the potential value of the product.
The experiments of ASTREDHOR Méditerranée SCRADH have shown that:
- Growing in a frost-free tunnel offers the best flower quality.
- Scilla bulbs multiply quickly: from 5 bulbs, you can obtain up to 30 in 3 years.
- Cold treatment slightly improves flower stem yield.
The organic market remains marginal for this species, but signs of structuring are emerging: in 2020, no organic supplier was listed on graines-biologiques.org for this species. Producers must therefore often resort to untreated bulbs with a derogation . The development of the organic offer remains a strategic lever in the medium term.
In the context of Slow Flower and the rise of flower farms , Scilla represents a niche opportunity in line with the expectations of consumers and committed plant professionals.
Our sales arguments for professionals
As a floriculture specialist , Floriverse supports professionals with a simple and seamless agricultural supply , without complications. Our Scilla flower bulbs , from specialized producers , are offered at producer prices with an unbeatable quality-price ratio . Professional quality is guaranteed on each batch, whether organic, untreated or conventional bulbs.
Our responsive sales department is committed to providing free quotes and advice within 48 hours , with the option to book ahead of the season . We also offer dedicated technical support and personalized advice to optimize each growing route. Deliveries are careful and possible throughout France within 15 days during the season.
Our offer is available online with decreasing prices according to volumes for wholesale and direct orders . Choosing Floriverse to buy Scilla flower bulbs means benefiting from proven expertise, comprehensive support and efficient logistics, at the service of demanding floriculturists.
Botanical and systematic classification of the genus Scilla
The genus Scilla (L.) is scientifically classified within the family Asparagaceae , more precisely in the subfamily Scilloideae , according to the modern phylogenetic classification. This genus encompasses a diversity of species, estimated to number between 30 and 80, constituting perennial herbaceous plants developing from a bulb . From a complete taxonomic point of view, Scilla is located in the kingdom Plantae , the clades Tracheophytes , Angiosperms , Monocots , the order Asparagales , the family Asparagaceae , and the subfamily Scilloideae . It is relevant to note the evolution of this classification, the genus having previously been attached to the Liliaceae or Hyacinthaceae . The floral formula P3+3 A3+3 G(3) characterizes this genus within its family. Although mostly known for their blue flowers , some species or varieties have white , pink or purple hues. Flowering is mainly in spring , although some autumn species exist. Among the most cultivated species are Scilla bifolia L. , considered the type species, Scilla peruviana , and Scilla siberica , very widespread in France.
Origin, distribution and adapted biotopes
Species of the genus Scilla have a wide geographical distribution, extending mainly across Europe , especially in the Mediterranean region, North Africa , Southwest Asia and the Near East . They are also found in South Africa and, in a naturalized state, in various parts of Australia , New Zealand and North America . In France, two species are considered endemic: Scilla bifolia and Scilla lilio-hyacinthus , the Pyrenean squill.
Regarding their natural habitat, Scilla thrive in a variety of biotopes , including open woodland , subalpine meadows , forest edges , rocky areas , as well as dry coastlines and grasslands, the precise habitat depending on the species in question. Scilla bifolia , for example, is found in undergrowth and damp meadows at low to medium altitudes, while Scilla lilio-hyacinthus prefers damp meadows and cool clearings in the Pyrenees, generally between 400 and 1,600 meters above sea level.
The genus adapts to temperate to Mediterranean climates , sometimes mountainous , requiring cool soils in spring and dry in summer . They absolutely require well-drained soil , especially in winter. The altitudes observed for Scilla bifolia vary from 0 to 1,500 m and for Scilla lilio-hyacinthus from 400 to 1,600 m. Scilla prefer light to well-drained soils , which can be sandy , stony or humus-rich , and tolerate certain poor or calcareous environments depending on the species. Intolerance to stagnant humidity is a crucial ecological factor, especially in winter.
Technical characteristics of the marketable bulb
The Scilla bulb is characterized as a tunicate bulb , that is, with a compact structure protected by an envelope. For professionals, the standard commercial size for species like Scilla siberica is 8/+ cm in circumference . This size generally ensures good flowering from the first year of planting. The bulbs typically have a yellowish-white color and a compact, ovoid shape. They are remarkably resistant, particularly to cold , which makes them very suitable for the French climate. A significant advantage for professionals is their resistance to deer and rodents . Scilla bulbs have an excellent capacity for multiplication by division (cloves) and self-seeding , favoring their rapid naturalization. Each bulb can produce 3 to 4 flower stems , each bearing 3 to 5 bell-shaped flowers . For professional marketing, the bulbs are commonly packaged in boxes of 250 units .
Foliage structure and cycle
Scilla foliage is typically basal , emerging directly from the bulb . The leaves are linear to lanceolate , resembling narrow straps or ribbons , with a smooth, fine , and supple texture , usually without hairs . They are not leathery, which is characteristic of ephemeral spring foliage. Leaf width varies from 0.5 to 2 cm , and length can reach 20 to 30 cm for the largest species. The color is bright to dark green , which may have a slightly bluish tint in some species such as Scilla siberica . This foliage appears very early in spring, often as early as February-March , and persists for about 6 to 8 weeks after flowering before yellowing and dying naturally, a cycle typical of spring deciduous plants . For Scilla siberica , foliage is present from March to late April or early May depending on local conditions. This foliage, although discreet after flowering, is essential for the development of the plant and the accumulation of reserves in the bulb.
Floral shapes, sizes and colors
Scilla flowers vary in shape depending on the species, usually stellate or bell-shaped . In Scilla peruviana , the inflorescence is a dense spherical umbel (up to 10-12 cm in diameter) composed of 40 to 100 small stellate flowers , borne on 30-50 cm stems . Other species, such as Scilla siberica , have flowers singly or in loose clusters of 2-3 flowers per stem, each about 1.5-2 cm wide on 10-20 cm stems . Scilla campanulata (syn. Hyacinthoides hispanica ) bears clusters of 10-20 bell-shaped flowers per stem. The dominant color is blue , in shades ranging from deep blue ( S. peruviana , S. siberica ) to pale blue ( S. campanulata ), but there are also white , pink or purple varieties. The fragrance is generally absent or very light, without being a striking feature of the genus.
Vegetative development and plant habit
The mature height of Scilla varies depending on the species. Scilla siberica typically reaches 15 cm , Scilla campanulata about 40 cm with a width of 10 cm , and Scilla peruviana about 40 cm with a width of 25 cm . Scilla generally develop an upright habit , with linear to lanceolate, often thick, basal leaves and erect flower stems (scapes) that rise above the foliage. The flowers are arranged in clusters , sometimes in corymbs , with the number varying from 1 to 100 depending on the species. Most scilla form a tuft of leaves erect at the base with one or more flower stems rising vertically.
Flowering period and average duration
Scilla flowering is mostly in spring , and often very early , occurring at the end of winter or the beginning of spring , depending on the species and the climate. For the most professionally cultivated species in France, Scilla siberica , the start of flowering is between the end of February and the beginning of April , with a peak generally in March . Some species can have autumn flowering, but this is less common in professional cultivation in France. The average flowering time for Scilla siberica is relatively short, 2 to 3 weeks per plant. After this short period, the plant goes into summer dormancy once the foliage has faded.
Hardiness and cold tolerance
Scilla are considered very hardy plants. They are able to withstand very low freezing temperatures without special protection, provided the soil is well-drained . For Scilla siberica , hardiness has been proven down to -20°C in the ground, without the need for mulching, except in the case of waterlogged soils . This species is adapted to USDA zones 3 to 8 , which corresponds to a tolerance of minimum winter temperatures ranging from -40°C to -15°C . Most cultivated Scilla, including Scilla bifolia , have similar hardiness . In the case of very cold winters or alternating freeze-thaw conditions , a light mulch can offer additional protection , particularly for exposed bulbs . It is important to note that cold hardiness does not imply tolerance of winter stagnant moisture ; therefore, good drainage is essential.
Crop cycle and sustainability of plantations
Scilla are perennial perennial bulbous plants , following an annual growth cycle while persisting for a long time . They are very resistant . The cycle begins with the planting of the bulbs in the fall , which develop their roots before winter. During the winter, the bulbs are dormant . In early spring, growth resumes , and very early flowering occurs. After flowering, the foliage continues to develop to store energy in the bulb . For Scilla siberica , the foliage fades in a few weeks , while for Scilla campanulata , it can take more than a month . Scilla multiply effectively by division of the bulbs (production of bulbils) and by natural sowing , often helped by ants. Their excellent naturalization capacity allows them to quickly form a floral carpet . Robust, they resist well to pests such as rabbits, voles, and deer . Their main susceptibility is root rot in poorly drained soil . For longevity and annual flowering , it is crucial to allow the foliage to fade naturally . Well established, Scilla can persist and multiply for many years without major intervention.
Multiplication techniques
Preferential propagation of Scilla occurs through the production of bulbils , small bulbs that form around the mother bulb . This method ensures gradual propagation of the plant. Division of the bulbs , separating dormant bulbils, is also an effective technique . Propagation by seed is possible but slower, as seeds require several years to produce flowering plants . In optimal conditions ( well-drained soil , adequate exposure ), a bulb can produce 2 to 4 bulbils per year. The size of the bulbils or divisions can vary from 5 to 20 cm depending on the species and conditions. Well-drained soil and sunny exposure are essential to encourage propagation.
Recommended varietal selections and cultivars
Several species and cultivars of Scilla are of interest for professional cultivation . Scilla siberica , about 10 cm tall and early flowering ( February to April ), prefers heavy, clay-rich soils and partial shade , while tolerating limestone . Notable cultivars include 'Spring Beauty' (taller, deep blue flowers ), 'Alba' ( white flowers ), and 'Grace Lofthouse' ( blue-violet flowers , rarer). Scilla bifolia , very early ( February to April ), is a low ( 4-10 cm ), competitive European native preferring calcareous soils . Scilla campanulata (syn. Scilla hispanica ), spring flowering, is less demanding on soil but prefers good drainage and a fertile substrate . Scilla are generally hardy ( zones 4-8 ) and prefer full sun to partial shade , not flowering in dense shade . Their effect is often achieved by planting in numbers . The color palette mainly covers blue , but also white , pink and purple .
Points of vigilance: toxicity and regulations
Scilla bulbs contain potentially toxic compounds, mainly cardiac glycosides . All parts of the plant may be affected. Ingestion can cause gastrointestinal disturbances and, at high doses ( from 20-30 g of fresh bulb in humans), cardiac disturbances in humans and domestic animals. The risk to livestock is limited by their low palatability . For small animals , a single bulb may be enough to cause symptoms. Most species cultivated in France (such as S. siberica and S. campanulata ) are not protected at the national level , but it is advisable to check possible local regulations for native wild species. Contact with the sap can cause slight skin irritation in sensitive individuals, but this risk is low during standard handling . A major advantage is their resistance to rodents and deer .
Use as a cut flower: potential and limits
Scilla, with their pretty blue flowers (often) and their early flowering , can be used as cut flowers to bring freshness to spring bouquets . Their inflorescences are light and aesthetic , suitable for small compositions . Their ease of cultivation and their capacity for naturalization allow them to be produced in quantity . Scilla are listed among the cut flowers . Their vase life is moderate , around 5 to 7 days , which is correct for a small spring flower . They generally do not have a strong fragrance , which can be an advantage or a limitation depending on the use. The stems are thin , generally 10 to 15 cm for Scilla siberica , limiting their use to small bouquets . Some species like Scilla peruviana can reach 20-40 cm . The rigidity of the stems is average , making them unsuitable for large structured compositions . They are relatively fragile and do not tolerate excessive handling well .
Landscape value in mass planting
Scillas fit perfectly into various professional landscaping schemes , including flowerbeds , borders and rockeries . Their spring flowering creates touches of color . Scilla peruviana is particularly popular in flowerbeds for its large inflorescences (10-20 cm in diameter), which can be planted in groups of 10 to 20 bulbs per square meter at the back or center of the flowerbed. In borders , their compact shape and summer deciduous foliage make them ideal, with a recommended density of 15 to 25 bulbs per linear meter . Their hardiness and low summer water requirements make them good candidates for draining rockeries . They naturalize excellently by spontaneous sowing and division of the bulbs . A clump can double in volume every 3 to 4 years . After 5 years , an initial planting of 20 bulbs/m² can reach 40 to 60 bulbs/m² . Good drainage , light soil , sunny to partially shaded exposure and sufficient density are key to successful naturalization .
Usefulness in urban planning and large spaces
Scilla are particularly relevant for communities and the management of large public spaces in France. Their ease of maintenance is a major economic asset: they generally do not require watering in the ground, reducing labor costs . Their ability to naturally multiply by division and sowing allows for a gradual extension of planted areas without intensive intervention . The plant tends to fill the allocated space , ensuring good long-term coverage . A planting density of 20 to 40 cm spacing is recommended for effective establishment. Scilla require dry, well-drained soil , particularly in winter. The only routine maintenance recommended is the removal of faded flowers to limit spontaneous seedlings , and it is imperative to only cut the foliage once it has completely dried out . They allow the creation of colorful clumps, borders and flowerbeds with minimal maintenance , ideal for large-scale developments where human intervention must be limited.
Role in the pollinator ecosystem
Scilla are highly attractive to pollinating insects . Their early flowering in early spring makes them an important food source for pollinators emerging after winter. Although specific figures are limited in the sources consulted, it is established that they potentially attract wild and domestic bees, as well as bumblebees . Some species are also recognized as very melliferous . The integration of Scilla in green spaces contributes to local biodiversity and can be included in action plans for the protection of pollinating insects .
Compatible plant combinations
For complementary aesthetic and cultural effects , Scillas are ideally combined with other plants that share similar needs and offer complementary flowering or development. Their intense blue flowers and low growth habit (10-20 cm for S. siberica ) combine well with species that flower in staggered periods or with varying heights . Successful combinations include Crocuses (very early flowering, at the front of beds), dwarf Narcissus (which emerge after Scillas and mask their yellowing foliage ), botanical Tulips (compatible in depth and water requirements), as well as Fritillaria or Allium (taller, in the background). Ground cover perennials such as Perennial Geraniums , Brunnera macrophylla or Epimedium take over the foliage after flowering, covering the ground and limiting weeds. A high planting density for Scilla, 75 to 100 bulbs/m² , with a spacing of 3 to 4 cm , is recommended for a mass effect, planted at a depth of 7 to 10 cm .
Decorative appearance after flowering
After flowering, the ornamental interest of Scilla is mainly linked to the evolution of their foliage , which begins to dry and then disappears completely in late spring/early summer. This senescence of the foliage is a vital phase for the bulb, allowing it to replenish its reserves . It is imperative not to cut the foliage before it is completely dried to ensure future flowering. Some species such as Scilla violacea can develop a purple coloration on the underside of the leaves , providing visual interest if the exposure is bright . The capacity for naturalization by sowing and bulbils ensures the sustainability and extension of floral carpets, constituting a commercial advantage for landscapers. For Scilla peruviana , the aerial part disappears completely in summer , the plant entering dormancy until autumn.
Yield and technical itineraries in professional cultivation
Precise information on average yield (number of stems/flowers per m² or per bulb) for all Scilla species is limited in the sources consulted. For Scilla peruviana , yield is correlated with the age of the crop : older plants generally produce more flower stems per bulb. To optimize yield, precise growing conditions are necessary, including dry, well-drained soil , lightened if necessary. Production methods can be extensive outdoors or intensive under cover or above ground . After flowering, the plant must be left to dry before re-watering and fertilizing at the start of growth. In forced cultivation in a heated greenhouse, a suitable fertilization program ( rose type 1-0.6-1.6 with Ec=1.8 mS/cm ) and precise temperature management (10-12°C or 12-14°C) are recommended. To obtain accurate yield data, it would be advisable to consult specialist producers or horticultural technical institutes .
Off-season forcing protocols
Forcing Scilla bulbs is technically feasible to achieve flowering outside their natural season , particularly in greenhouses or indoors , which is relevant for the production of cut flowers or potted plants . This process requires a vernalization period, i.e. exposure to cold , which is essential for floral induction . The bulbs must undergo 10 to 12 weeks at a temperature of around 5°C , either naturally after autumn planting (October to November) before frost, or artificially in a cold room . After this cold period, the bulbs are transferred to a greenhouse at a mild temperature (12°C to 15°C) and under good light . Flower buds appear in 2 to 3 weeks . By mastering the calendar, it is possible to obtain flowering Scilla from mid-January until March/April . In forcing, the planting density is typically 20 to 40 bulbs per square meter . Moderate watering , avoiding stagnant moisture , is crucial. Forcing allows for early marketing , but may slightly reduce bulb vigor after several years of intensive planting.
Soil specificities and drainage management
Scilla require a specific soil for optimal development . The ideal texture is light to medium-light , preferably sandy or sandy-loamy , and rich in organic matter ( humus ) for good moisture retention without excess. The most important agronomic criterion is excellent drainage , essential to prevent asphyxiation and bulb rot , especially in winter. In heavy soils, the incorporation of 30 to 40% coarse sand or gravel is strongly recommended to improve permeability . The ideal soil pH is in the weakly acidic to neutral range, between 6.0 and 7.0 . Regular additions of well-ripened compost or decomposed manure are beneficial.
Optimal light exposure
Most Scilla species demonstrate good flexibility in their light exposure . They are happy with full, non-burning sun and partial shade . Some even tolerate light shade, typical of undergrowth. For abundant flowering and optimal development , sun exposure of at least 6 hours per day is ideal, especially for Scilla peruviana . When growing in pots or under cover , favor the fullest possible light . Although shade tolerant , a reduction in light can reduce flowering intensity .
Best times to plant bulbs
The planting calendar for Scilla bulbs includes two main periods. A spring period runs from January to April . The autumn period , from July to October , is particularly recommended because it allows the bulbs to take root before winter and ensures better flowering the following spring . Planting should take place before the ground freezes .
Recommended planting depth and density
For successful planting , respect a depth of between 7 and 10 cm below the surface of the soil, which is approximately 2 to 3 times the height of the bulb . The recommended spacing between each bulb is 10 cm for optimal development. To obtain a flower carpet effect or as part of mass plantings , a closer spacing, between 5 and 12 cm , can be adapted depending on the size of the bulbs and the desired visual effect . Always plant the tip of the bulb upwards in well-drained soil and before the autumn frosts .
Watering and fertilization strategy
Scilla grown in the ground have moderate water needs , depending mainly on natural rainfall ; watering is only required in case of prolonged spring drought . When grown in pots , water 1 to 2 times per week when the substrate is dry , especially during active growth . Drainage is essential to avoid rot . Fertilization is not intensive, but a one-time application in spring and autumn , or a phosphorus fertilizer (type 5-10-5 or 4-8-4 ) every 30 days during the active vegetative cycle, promotes flowering . Avoid fertilization during winter or summer dormancy . The soil should remain fresh but never soggy .
Winter protection measures and mulching
Scilla are generally hardy enough ( zones 4 to 8 ) not to require extensive winter protection in most parts of France. However, in areas where temperatures regularly drop below -15°C , or for Scilla peruviana ( zone 8, -12 to -7°C ), light protection may be beneficial. A 2 to 3 cm mulch (straw, dead leaves, compost) applied after planting can help maintain moisture and stabilize soil temperature . In very cold regions, techniques such as air mixing in case of late frosts can be considered. The most crucial aspect for winter resistance is perfect drainage of the soil to avoid rot . For container crops , it is recommended to protect them from severe frosts , for example under a hedge . Planting at a slightly deeper depth (about 2 times the height of the bulb ) may also offer better protection .
Post-flowering care recommendations
Scilla care is relatively simple . After flowering, it is important to remove faded flower stalks to prevent seed production and concentrate energy towards the bulb . This practice also limits spontaneous sowing . The foliage should absolutely not be cut before it is completely yellowed and dried out ( 6 to 8 weeks after flowering), as it is vital for the replenishment of the bulb's reserves . Watering in the ground is generally unnecessary once the plants are established , rainfall is sufficient. In pots, weekly watering ( 1-2 times/week ) is necessary during growth. Division of the bulbs , recommended every 3 to 4 years when the clumps become too dense , is carried out in late summer or early autumn after the foliage has yellowed . Scilla are resistant to diseases , mainly susceptible to viruses which cause deformation and discoloration ; affected bulbs must be destroyed .
Health: viruses and prevention
Scilla are robust bulbs and generally not very susceptible to attacks from major parasites . The main health concern identified in the sources is sensitivity to viruses , which manifest themselves by deformations , stripes , discolorations on the leaves and flowers, and a slowdown in development . No chemical control is effective against these viruses; the only curative measure is to eliminate and destroy affected bulbs without delay . Prevention is therefore essential and is based on the use of healthy bulbs , the systematic elimination of suspect subjects , low-nitrogen fertilization , optimal growing conditions ( drained soil , good exposure ), disinfection of equipment , and regular renewal of the stock with certified healthy bulbs. Although rare , viruses can lead to the total loss of a contaminated batch .
Harvesting, preserving bulbs and seeds
Scilla bulbs should be harvested after flowering , when the foliage has turned yellow and dried ( late May to early July ), meaning that the bulb has completed its growth and accumulated its reserves . Carefully dig up the bulbs using a garden fork , taking care not to damage them . To harvest the seeds , wait until the capsules turn brown and begin to open . Let the capsules dry, then separate and dry the seeds . To store the bulbs , clean them without washing them , remove the soil, discard any damaged bulbs, then let them dry for 1 to 2 days in the shade in a dry, ventilated place . Then store them in open containers that allow air circulation , at an ideal temperature of 2°C to 9°C for spring bulbs, in a dark, dry, well-ventilated place , protected from frost. Monitor their health regularly . Seeds should be stored in a dry place (humidity < 10%), cool ( 4-10°C ) and away from light , in paper bags . Bulbs can be divided every 3 to 4 years .
Preventive crop rotation
To avoid the accumulation of bulb-specific pathogens and to preserve soil fertility in professional cultivation, a crop rotation is recommended for Scilla. Avoid replanting Scilla or other bulbs of the Liliaceae family (Tulips, Daffodils, Hyacinths, Alliums) on the same plot for at least 3 to 4 years . It is also advisable to avoid immediate successions with other bulbous or tuberous crops susceptible to rot . Ideally, intercrop the Scilla crop with break crops that are less susceptible to bulb diseases , such as cereals , temporary meadows , fodder legumes , or certain summer industrial crops . A three- or four-year rotation is recommended, for example one year of Scilla followed by 2 to 3 years of other non-host crops. This practice limits disease and pest pressure and maintains the agronomic potential of the plot.
Adaptations to climatic stresses
In case of prolonged drought , watering is only necessary for Scilla in the ground in spring . In pots, water only when the substrate is dry . Incorporating organic matter and using mulch ( 3-5 cm ) can improve water retention . Phosphorus fertilization during growth strengthens resistance . In the face of very harsh winters , perfect drainage is the essential protection . Lighten heavy soils with sand or gravel . For potted crops, place containers in a frost-free place , or apply a dry mulch 5 to 7 cm deep in the ground. Planting the bulbs slightly deeper ( twice their height ) offers additional protection .
Vernalization: physiological imperative
Yes, Scilla species absolutely require a cold period , or vernalization , to induce flowering . This need is written into their genetics . The bulbs must be exposed to low temperatures , typically around 4°C , for 10 to 12 weeks . In cultivation, this cold period naturally corresponds to the winter months after autumn planting . For precise control of the flowering schedule , particularly in forcing , vernalization can be carried out artificially in a cold room at 4°C. Without this cold exposure, flowering will be compromised or absent .
Professional cultivation in pots or under cover
Professional cultivation of Scilla in pots or under cover is quite effective and even recommended for better control of environmental conditions . This method allows for fine management of drainage and humidity , essential for these bulbs. The substrate must be very draining : a mixture of horticultural soil with 30 to 50% coarse sand or perlite is ideal. Make sure that the pots have effective drainage holes . Planting is done at a depth of 8-10 cm for S. peruviana , with reduced spacing in pots ( 3-4 cm between bulbs). Watering must be moderate : barely damp substrate in winter , fresh but not soggy during spring growth, then greatly reduced or stopped in summer during dormancy. Fertilization rich in potassium every 15 days during growth is beneficial. In cold regions, protect the pots from frost (minimum temperature tolerated around -5°C ).
Health indicators and physiological stress
To assess the health of Scilla , several visual and physiological indicators should be monitored. A healthy bulb is firm , free of spots , mold , or dried out parts ; the size is also an indicator of vigor (e.g., 5/+ cm for Scilla bifolia ). The foliage should be bright green , upright , without early yellowing or necrosis (possible signs of deficiencies , water stress ). Soft leaves indicate water stress or attack . Spots may signal fungal diseases . Flowering should be abundant ( 3-4 stems and 3-5 flowers per bulb for S. siberica in optimal conditions); poor flowering suggests a lack of reserves . Spring emergence should be synchronous and development homogeneous . Bulb size is a key indicator of potential vigor. Specific signs such as early yellowing (nitrogen deficiency), brown edges (potassium deficiency), delayed flowering (lack of phosphorus), rot (saturated soil) or rapid wilting (dry soil) can help diagnose stress or deficiencies .
Renewal of strains and choice of caliber
Dividing or renewing Scilla clumps is generally only necessary every 4 to 5 years , when the density of the bulbs reduces the quality of flowering . Scilla naturalize well and can remain in place for many years if the foliage is not cut too early . Division is carried out after the foliage has completely yellowed (late spring/early summer). The size of the bulbs directly influences vigor and flowering : large bulbs (> 12 mm for S. siberica , > 22 mm for S. peruviana ) produce more flower stems ( 2 to 4 or more ) and better quality flowers in the first year. Smaller bulbs may require one or two additional growth cycles before flowering abundantly . For professional production , the use of large bulbs is recommended to ensure optimal and rapid floral results .
To summarize: Our Scilla Bulbs
Scilla bulbs are a strategic choice for professionals wishing to enrich their spring floral palette. Their intense blue blooms, their short growing cycle, and their excellent adaptation to well-drained environments make them ideal candidates for mass plantings, cut flowers or landscaping. At Floriverse, a specialist wholesale supplier of flower bulbs , we select robust, well-calibrated bulbs ready to produce from their first season. Our references cover the main species cultivated in France, including S. siberica , S. bifolia and S. campanulata , available in organic, untreated or conventional varieties.
Our service is aimed at demanding floriculturists who wish to purchase Scilla bulbs with the guarantee of personalized support, reliable stock and proven commercial responsiveness. Thanks to our expertise as a wholesale supplier specializing in flower bulbs , we ensure efficient supply, with quotes within 48 hours, fast delivery and cultural advice adapted to each context. Buying Scilla bulbs from Floriverse means investing in a rustic, decorative species with a high multiplication capacity, ideal for making your plots profitable while meeting current expectations of naturalness and floral relocation. For each project, trust a wholesale supplier specializing in flower bulbs .
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