Order your professional Gladiolus corms
Bulbiverse , a specialist wholesale supplier of Gladiolus corms , offers you a professional varietal range adapted to the expectations of the horticultural market. Buying your Gladiolus corms means benefiting from producer prices , rigorously selected professional quality , from specialized nurseries and accompanied by dedicated technical support . Our corms guarantee optimal varietal resistance , spectacular flowering and prolonged vase life , ideal for floristry. Fast and careful delivery throughout France , our sales department is at your disposal for efficient support and personalized advice . Order your volumes now or request your free quote to anticipate your needs and optimize your crop rotations. Reserve your corms now to ensure your production cycles without interruption.
Botanical and visual characteristics of Gladiolus
Gladiolus , commonly known as gladiolus or "sword lily", belongs to the family Iridaceae , subfamily Crocoideae. This genus includes about 260 species of corm plants, mainly native to South Africa, with extension in Mediterranean Europe, Asia and tropical Africa.
The storage organ is not a bulb but a corm , a swollen underground stem planted 10-12 cm deep . The distinctive foliage is in the form of long, ensiform leaves arranged in a vertical fan, with 8 to 12 leaves per plant measuring 1 to 8 cm wide.
The spectacular flowering produces funnel-shaped flowers that open sequentially from the base to the top. Large-flowered varieties reach 1.00 to 1.50 m in height , while dwarf gladioli measure 0.45 to 1.00 m. Their upright habit facilitates mechanical harvesting and ensures excellent vase life.
Varietal range and horticultural classification
The professional market offers a variety of cultivars that meet the requirements of color, height and earliness. Classic cultivars include 'Priscilla' , 'Chocolate Ripple' , 'Dykhanie Oseni' , 'Flevo Amico' and 'Red Cascade' .
Classification by earliness of flowering
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E (Early) : varieties like 'Brenda Jo'
- EM (Semi-early)
- M (Mid-season)
- LM (Semi-late)
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L (Late) : varieties like 'Big Blue'
Professional color coding
- Reddish tones: 200-299
- Pinks and purples: 300-399
- Blues and creams: 400-499
Planting calendar and techniques
Planting takes place from March to June in mainland France, with an optimal period from mid-March to May for mild regions. General planting takes place around mid-May after the Ice Saints . The soil temperature must be stable and above 10°C .
Technical planting depths
- Large gladioli: 15 to 20 cm deep
- Dwarf varieties: 10 to 15 cm deep
- Heavy soils: minimum depth recommended
- Light soils: maximum recommended depth
Optimized crop spacing
- Standard varieties: 10 to 15 cm between plants
- Large cut flower varieties: 15 to 20 cm
- Propagation bulbils: 5 cm spacing
- Group planting: 10 to 20 bulbs per island
Soil and climate requirements and fertilization
The ideal soil is light, well-drained, rich in organic matter , with a slightly acidic to neutral pH between 6.5 and 6.8 . Full sun exposure is mandatory with a minimum of 6 hours of daily sunshine .
Preparation of the technical floor
- Deep digging: 25 to 30 cm
- Incorporation of well-rotted compost
- Improving heavy soils: adding coarse sand or gravel
- Improvement of sandy soils: incorporation of clay
Professional Irrigation Program
- Weekly intake: 2.5 cm of water minimum
- Standard frequency: 2 waterings per week
- Foot irrigation only
- Technical mulch: 5 to 7.5 cm thick
Reasoned fertilization
- Balanced granular fertilizer at planting
- Bi-monthly applications of liquid fertilizer during growth
- Increase potash before flowering
- Pot culture: liquid fertilizer diluted every 1-2 months
Vernalization and floral optimization
Vernalizing corms at 5-10°C for 3 to 6 weeks before planting is crucial to induce early, high-quality flowering. This process advances flowering by 11 to 20 days and improves plant height and flower spike quality.
Technical management of flowering
- Mandatory staking for varieties exceeding 1.20 m
- Removal of faded flowers to optimize the corm
- Protection against strong winds
- Staggering of plantings every 10-15 days
Flowering calendar and staggered production
Flowering extends from July to September in mainland France. The staggered planting allows for continuous production over 3 months , from the beginning of July to the end of September. Each flower stem offers 10 to 15 days of flowering , with a vase life of 8 to 10 days .
Cultural associations and complementarity
Gladiolus is best planted in flowerbeds with 12 cm spacing between bulbs to optimize aeration. Recommended associations include Iridaceae (agapanthus, alliums), lavender for similar soil and climate conditions, and ornamental grasses for structural contrasts.
Repulsive functional associations
- Santolina: natural snail and slug repellent
- Aromatic plants with a strong smell
- Optimization of use of cultivated space
Ecological benefits and biodiversity
Gladiolus byzantinus effectively attracts bees and butterflies thanks to its intense blooms. Key pollinators include honeybees, bumblebees, butterflies, and flies. Planting beehives nearby optimizes pollination and genetic diversity in a controlled environment.
Winter management and hardiness
Common horticultural varieties are not hardy beyond mild coastal areas. Corms are damaged from 0°C to -1°C . Autumnal removal after the foliage has yellowed is mandatory, followed by storage at 5-10°C in a dry, ventilated area.
Rustic varietal exception
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Gladiolus byzantinus : can be kept in the ground
- Standard 5 to 7 cm dry mulch
- Reinforced mulch of 10 cm in case of severe frost
Cut flower quality and marketing
The stiff stems reach 90 to 120 cm depending on the variety, ideal for floral arrangements. Harvest when the two bottom flowers are in bloom . Vase life reaches 8 to 10 days with stem cutting every two days and frequent water changes.
Technical quality criteria
- Corms caliber greater than 4 cm in diameter
- Production of taller and more floriferous stems
- Diverse color range
- Adaptability to market demands
Multiplication and cultural renewal
Propagation is carried out by cormules (bulbils) formed around the mother corm, generally 2 to 5 per season . These cormules reach flowering size in 1 to 2 years . In vitro propagation makes it possible to obtain more than 30 shoots per batch in a few weeks.
Division program
- Division recommended every 2 to 3 years
- Maintaining vigor and productivity
- Selection of the best breeding corms
Crop rotation and prophylaxis
Careful rotation prevents soil-borne diseases (Stromatinia Corm Dry Rot, Fusarium Rot). Avoid replanting Iridaceae for at least 6 years on the same plot. Recommended non-host crops include cereals and green manures.
Alternatives to long rotation
- Steam sterilization: 60-70°C for 2 hours
- Deep plowing of 30 cm
- Less efficient than rotation
Climate stress adaptations
In prolonged drought, regular watering should moisten the soil to a depth of 15 to 20 cm , supplemented by a thick mulch of 5 to 7.5 cm . In harsh winters, pulling up and storing at 5-15°C remains the safest method, with mulch of more than 10 cm if kept in the ground.
To summarize: Our Gladiolus corms
Gladiolus corms distributed by Bulbiverse meet the technical requirements of ornamental plant professionals. Each corm is calibrated to offer rapid growth, an upright habit ideal for cutting, and a wide floral palette. We offer a wide variety selection, including early, semi-early and late varieties, for staggered flowering from July to September. Bulbiverse , a specialist wholesale supplier of Gladiolus corms , guarantees complete traceability, corms from controlled cycles, and excellent value for money. For your cut flower or bed production needs, you can buy Gladiolus corms with the certainty of a reliable supply. Thanks to our horticultural expertise, we help you secure your yields. As a specialist wholesale supplier of Gladiolus corms , Bulbiverse supports you with rigor and responsiveness. Don't wait any longer to buy Gladiolus corms from a recognized partner. Optimize your production chain with a reliable, responsive, and performance-oriented wholesale supplier specializing in Gladiolus corms . Horticultural professionals, buy Gladiolus corms with complete peace of mind from Bulbiverse .
