Also known as Autumn Crocus
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Colchicum multiflorum produces a profusion of delicate, star-shaped, pale purple to white flowers in autumn, blooming before its leaves emerge.
At-a-glance light, water, soil, and growing conditions from plant data
Full sun to partial shade
75% intensity
Prefers sunny locations but can tolerate light shade, especially in hotter climates. Ample light promotes better flowering.
Moderate during growth, dry during dormancy
50% intensity
Ensure well-draining soil and avoid overwatering, especially during summer and winter rest periods.
Well-drained, sandy loam
50% intensity
Cool to moderate
50% intensity
Prefers cooler temperatures during active growth and a dry, cooler period for dormancy. Protect from extreme heat and frost.
Light feeding during spring
25% intensity
A balanced liquid fertilizer diluted to half strength applied once in spring is sufficient. Avoid excessive nitrogen.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 5/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
All parts toxic, especially corms and seeds. Contains colchicine, which can cause severe gastrointestinal upset, cardiovascular and respiratory issues, and even death.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water moderately during the active growth period (spring and autumn) when the top few centimeters of soil are dry. Reduce watering significantly during dormancy in summer and winter to prevent bulb rot.
Ensure good drainage to avoid waterlogged conditions.
Pruning is generally not required for Colchicum multiflorum. Dead or yellowing foliage should be removed after it has naturally withered in late spring or early summer to maintain a tidy appearance and prevent disease.
Do not cut back green leaves prematurely.
Colchicum multiflorum can be propagated by dividing mature corms during their summer dormancy. Replant the divisions immediately in well-draining soil.
Seed propagation is also possible but is a slow process, taking several years for the plants to mature and flower.
Repot established plants every 2-3 years, preferably during their summer dormancy. Choose a pot with good drainage and use a well-draining, gritty potting mix.
This allows for inspection of the corms and ensures they have adequate space to grow and multiply.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Colchicum Multiflorum (Colchicum multiflorum)
Where Colchicum Multiflorum (Colchicum multiflorum) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Liliales |
| Family | Colchicaceae |
| Genus | Colchicum |
| Species | Colchicum multiflorum |
Similar in genus Colchicum
Answers based on plant encyclopedia data
