Why choose Floriverse as your specialist wholesaler?
1. Complete short circuit – from the field to your plot
At Floriverse, Colchicum bulbs are grown and packaged by our own horticultural partners, with no middlemen involved. This means you benefit from stable producer prices and rigorous quality control on each batch (size, health, consistency).
2. B2B logistics calibrated for professionals
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Real-time availability: daily stock updates; in a sector where supply is limited, it is advisable to reserve your varieties 3 to 6 months in advance to guarantee varietal choice.
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Express preparation: during the season, delivery within 7 to 15 days throughout France and Europe. Outside Europe is possible upon request.
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Optimized packaging: packaging varies according to the volume ordered; we select the most protective solution for the health of the bulbs while guaranteeing the best optimization of logistics costs.
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Delivery: France delivered within 7 days, Europe within 15 days; for destinations outside Europe, we prepare a tailor-made offer. Incoterms DAP or FCA of your choice.
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Proactive monitoring: real-time tracking by our teams.
3. Horticultural expertise
Founded in 2024 by plant enthusiasts, Floriverse offers its expertise in flower bulb cultivation to professional florists. Our technical team advises you on:
- the choice of planting calendars (open field / greenhouse forcing),
- optimal densities to maximize the rate of marketable stems,
- integrated management of pests and sustainable fertilization.
4. Guarantees & customer reviews
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Google Rating: 5/5
Responsiveness, speed and product quality are the most cited points.
Recent customer excerpts
“The plants are of high quality, extremely careful delivery.” — S. Aubailly (May 2025)
“Responsiveness, professionalism, good price.” — A. Benedetto (Feb. 2025)
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“Responsiveness, friendliness and top-notch products.” — E. Fleurat (Jan. 2025)
“Professional advice, fast delivery, impeccable quality.” — V. Morales (Nov. 2024)
“Unbeatable prices and impeccable customer service.” — AC (Dec. 2024)
How to order from Floriverse?
Request your personalized quote now – response within 48 hours for a batch of Colchicum bulbs:
We open your wholesale account in less than 24 hours, with no activation fees, and provide a customized quote based on your volumes.
Professional applications of Colchicum in flower production
Colchicum, often called colchicum, is distinguished by its ability to bring a unique and late floral touch to landscaping and plant collections, notably thanks to its autumn flowering .
Landscape and ornamental integration
Colchicum integrates very effectively into a variety of landscape settings. It is particularly suitable for deciduous shrub beds, where its autumnal flowering creates a remarkable seasonal contrast. For optimal visual effect, it is recommended to plant the corms in groups of 5 to 10 , with a spacing of about 10 cm , which allows for dense and captivating carpets of color. Its modest size and spectacular flowering also make it ideal for borders and rockeries, providing welcome color at the end of the season.
Container growing for flexible production
Colchicums demonstrate excellent success when grown in pots, offering valuable flexibility for temporary arrangements or confined spaces. This versatility even allows them to be used as temporary decorations, as the bulbs are capable of flowering "dry," without water or soil. For effective potting, the use of a container at least 15 cm deep with a drainage layer (pozzolana or clay balls) and quality potting soil is recommended. Watering should be light every two weeks from spring until flowering, and intensified during dry periods.
Benefits for communities and large spaces
Colchicum is a species of choice for communities and managers of large green spaces, due to its great ease of maintenance and its long-lasting flowering. As a bulbous perennial, it renews itself spontaneously each year, considerably reducing the replanting effort. Its water requirements are limited once established, aligning with ecological management practices aimed at restricting water consumption. Interventions are limited to the management of foliage after flowering and basic weeding. Its flowering from August to October prolongs the landscape interest, and each bulb can produce 3 to 5 flowers , offering a high floral density. The lifespan of a planted bulb can reach 5 to 10 years , or even more, guaranteeing the sustainability of the bed with a low renewal load.
Capacity for naturalization
Colchicum has excellent naturalization capacity in lawns, forming colorful carpets that return annually. This characteristic is particularly interesting for large landscaped areas requiring little maintenance. Its hardiness, withstanding temperatures down to -5°C and beyond , allows it to establish itself permanently in the majority of French metropolitan regions.
Cut flower potential
Although Colchicum is not a traditional cut flower, its flowers, on floral tubes 8 to 25 cm high , can bring a certain elegance to a vase. However, its vase life is relatively short, often less than a week, and its fragrance is generally considered unpleasant, even pungent. It is therefore suitable for specific ephemeral or seasonal compositions.
Ecological interest for pollinators
The autumn flowering of colchicums (late September to October/November) makes them a valuable source of nectar and pollen at a time when floral resources for pollinators are becoming scarce. Hymenoptera (bees, bumblebees), Lepidoptera (butterflies) and Diptera (flies) can be attracted to these flowers.
Professional planting technical protocol
Successful planting is the key to colchicum vigor and flowering. A rigorous technical approach is essential for professionals.
Planting schedule and depth
The optimal time for planting Colchicum corms is from July to the end of September , with a tolerance until the end of October. Ideally, August or early September is the best time to maximize recovery and flowering. Corms should be planted at a depth of 10 to 15 cm below the soil surface and spaced 10 to 15 cm apart to ensure optimal development and limit root competition. Planting is recommended when the soil temperature is above 10 °C .
Soil and drainage requirements
Colchicum requires well-structured, well-drained soil to prevent corm rot, especially during summer dormancy and winter. A fertile soil, preferably loamy or slightly clayey, but sufficiently loose, is recommended. The optimal pH is between 6.0 and 7.0 (neutral to slightly acidic), as colchicums do not tolerate excessively calcareous soils well. Adding organic matter, such as mature compost ( 2 to 3 kg/m² ), before planting is beneficial for fertility.
Light exposure
Ideal exposure varies between full sun and partial shade. High light intensity is recommended to maximize flowering, with at least 6 hours of direct sunlight daily . In hot regions, partial shade is preferable to avoid summer heat stress. Colchicum adapts well under deciduous trees that allow light to pass through in autumn.
Water requirements and fertilization
Water requirements are moderate, mainly covered by natural rainfall in temperate climates. Fresh but not soggy soil is essential. Additional watering of 20 to 30 mm per week may be necessary during the active growth phase (late summer-early autumn) in the event of prolonged drought. Fertilization is not very demanding, but an organic amendment before planting, with an addition of phosphate ( 80-100 kg/ha P2O5 ) and potash ( 120-150 kg/ha K2O ), promotes the storage of bulbs. A fractional application of nitrogen ( 40-60 kg/ha N ) can be considered during the growing season. Excess water is the main risk, which can lead to root asphyxiation and fungal diseases.
Mulching and winter protection
Mulching is not strictly necessary for Colchicum in most French regions, as it is very hardy (down to -20°C for Colchicum autumnale ) and its corms can tolerate soil temperatures down to -5°C . However, an organic mulch (straw, dead leaves, compost) 5 to 10 cm thick is recommended on heavy soils, in regions with very harsh winters (frost > -10°C), or to control weeds and prevent stagnant moisture, the main factor in bulb rot. No specific protection is required against summer drought, as the bulb is dormant.
Pot culture and forcing
Forcing Colchicum in a greenhouse or indoors is perfectly possible for off-season flowering. Corms can flower without substrate after a summer dormancy period ( 2-3 months at 20-25°C ). A temperature of 15 to 20°C , moderate humidity and strong, diffused light allow flowering in 3 to 5 weeks after emerging from dormancy. After forcing, it is recommended to replant the corms in the ground to replenish their reserves.
Botanical characteristics of Colchicum
The genus Colchicum is of great botanical richness and presents unique characteristics which make it a fascinating subject of study and cultivation.
Botanical classification
The genus Colchicum belongs to the botanical family Colchicaceae , which includes 15 genera and about 285 known species according to Christenhusz and Byng (2016). It is part of the order Liliales. The genus Colchicum itself includes about 160 species of flowering perennials, growing from corms. The most common and widely cultivated species in France is Colchicum autumnale (Autumn crocus). Other species such as Colchicum speciosum are also notable.
Distinctive morphology
Colchicum is characterized by:
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Flowers: They have 3 styles and 6 stamens, unlike crocuses. The flower's ovary is underground, resulting in extremely long styles, often over 10 cm. The flowers of Colchicum autumnale are star-shaped or goblet-shaped, predominantly lavender-pink in color. They emerge directly from the ground, without any visible stem, on a floral tube 15 to 25 cm high. Each sheath can produce between 1 and 6 flower stems.
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Corms: These are irregularly shaped, swollen stems covered in scales, not true bulbs. They are about the size of a walnut, although some varieties such as 'Waterlily' can produce corms with flowers up to 12 cm tall and 15 cm wide. The outer tunics are blackish.
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Foliage: The leaves of Colchicum autumnale are lanceolate to broadly lanceolate, fleshy, smooth, glabrous, and glossy on both sides, light to medium green. They are arranged in a basal rosette and are usually 25–40 cm long and 5–6 cm wide. Each bulb typically produces 3–5 leaves.
Particular vegetative cycle: "Filis ante patrem"
Colchicum is a perennial plant, more specifically a pseudo-annual perennial, renewing itself entirely each year by a system of successive corms. Its life cycle is unique:
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Autumn flowering: The plant flowers in autumn (August to October), before the leaves appear.
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Winter dormancy: The corm remains dormant underground after flowering.
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Spring foliage and fruiting: The leaves only appear the following spring (March to June), surrounding the immature seed capsule. They allow photosynthesis and the formation of a new daughter corm.
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Summer disappearance: The foliage gradually turns yellow and dries up in early summer, disappearing completely before the autumn flowering.
This sustainability is ensured by the annual replacement of the mother corm by a daughter corm. Natural longevity can reach 15 to 20 years , and more than 50 years in optimal cultivation . It takes a minimum of 4 to 6 years for the plant to reach reproductive maturity (three-leaf stage).
Geographical origin and natural habitat
The genus Colchicum is native to a vast area covering central and southern Europe (notably Colchicum autumnale in France, in the plains and mid-mountains), the Mediterranean coast, western Asia, and parts of the east African coast as far as South Africa. Its natural habitat is characterized by:
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Climate: Temperate to mountainous, with good tolerance to spring and summer humidity.
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Altitude: For Colchicum autumnale, from the plain up to 2,000 m (frequent between 1,400 and 2,000 m). Other Mediterranean species prefer lower altitudes (10 to 200 m).
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Biotope: Wet meadows (temperate, rich in grasses), riparian undergrowth (poplar, oak), calcareous or siliceous meadows, and sometimes Mediterranean scrubland.
This ecological diversity highlights its adaptability to cool or humid environments.
Hardiness and climate resistance
Colchicum is a very hardy plant, adapted to temperate climates. Most species in the genus, including Colchicum autumnale, are hardy to about -20 °C , corresponding to USDA zones 3 to 4 . Dormant corms can tolerate soil temperatures down to -5 °C .
Multiplication and production yield
Propagation is mainly done by division of the bulbs (corms), each mother bulb producing 2 to 3 bulbils per year . Sowing is also possible, but slower ( 3 to 5 years for flowering ). Advanced techniques such as colchicine polyploidization can accelerate propagation and create more vigorous varieties. In professional cultivation, each large corm generally produces 1 to 3 flowers in the first year . With a density of 10 bulbs/m² , 10 to 30 flower stems/m² can be expected in the first year. Yield can increase in the first years through vegetative propagation. Dividing the corms every 3 to 5 years is recommended to maintain plant vigor.
Cultivars and varietal diversity
There are over 100 species of Colchicum and numerous cultivars. The varieties cultivated in France are mainly derived from Colchicum autumnale for their hardiness and floridity. The cultivars are distinguished by:
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Color: From pure white (Colchicum autumnale 'Album') to intense purple (Colchicum autumnale 'The Giant'), including pink-purple (Colchicum autumnale 'Lilac Wonder').
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Flower shape: Single or double (Colchicum autumnale 'Alboplenum', 'Waterlily').
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Height: From 8 to 30 cm (25-30 cm for 'The Giant', 10-12 cm for 'Album').
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Flowering time: Varied, from early to late autumn depending on the selection ('Disraeli', 'Princess Astrid', 'Glory of Heemstede', 'Apollo', 'Beaconsfield').
Toxicity and Safety Precautions
It is imperative to emphasize that Colchicum is a highly toxic plant in all its parts, due to the presence of colchicine , a very powerful alkaloid.
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For humans: Ingestion of 5 mg of colchicine can cause severe symptoms, and above 10 mg , life-threatening. Consumption of 5 g of seeds , less than 2 g for a child , or 50 to 60 g of leaves can be fatal. Symptoms include burns, vomiting, severe gastroenteritis, nervous disorders and respiratory paralysis.
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For livestock: Animals avoid the fresh plant, but the risk is high when Colchicum is present in hay, as the toxicity persists after drying. The toxic dose for cattle is 8 to 10 g of fresh leaves per kg of body weight . Poisoning can cause liver damage and death.
It is crucial to inform professional buyers of these risks and handling precautions. No overall protected status is mentioned for Colchicum autumnale in France, but local verification is recommended.
Crop management and health protection
Colchicum requires little maintenance once established. Watering is minimal, except in cases of prolonged drought. Regular hoeing improves flowering, and it is advisable to mark the location of the corms to avoid damaging them when weeding. Leaves should not be cut until they have completely yellowed, as they are essential for corm regeneration. Colchicums are generally resistant to diseases and pests. The main problems are bulb rot ( Fusarium, Botrytis ) in wet soil, and gastropods (slugs, snails). Prevention requires excellent soil drainage, good crop rotation, and regular inspection of the bulbs.
Harvesting and storing corms
Corm harvesting is usually done in July , once the growing cycle is complete and the foliage has completely yellowed. It is crucial to separate the new corms from the old, exhausted ones and select the healthiest and most vigorous ones. If storage is necessary, the corms should be kept in a dry, cool, and well-ventilated place, minimizing the storage time so as not to weaken the bulbs. The ideal replanting is in August .
To summarize: Our Colchicum bulbs
At Floriverse , we provide professional floriculturists with robust, high-performance Colchicum bulbs that are perfectly suited to intensive floriculture operations. Thanks to their distinctive autumnal flowering, Colchicum bulbs are a valuable late-season aesthetic resource, both in flowerbeds and when grown in pots. Each bulb can produce several flowers in the first year, ensuring a rapid return on investment. As a specialist wholesale supplier of Colchicum bulbs , we select healthy, ready-to-use corms to maximize your yield. Our bulbs come exclusively from specialized nurseries, with high standards of health and calibration. Whether you are a cut flower grower or a landscape manager, buying Colchicum bulbs allows you to diversify your offering and meet a growing demand for staggered flowering species. Our teams support you with advice tailored to your growing conditions, from site selection to post-flowering management. Trust Floriverse , your specialist wholesale supplier of Colchicum bulbs , to benefit from professional products, responsive support and optimized delivery times. Think about buying Colchicum bulbs today to enrich your production schedule. With Floriverse, buying Colchicum bulbs becomes a strategic choice to enhance the value of your plots. We remain your specialist wholesale supplier of Colchicum bulbs for reliable and technical supplies in all seasons.
