The Main Plant entry for Colchicums (Colchicum)

This database entry exists to show plant data and photos that apply generically to all Colchicums.

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Leaves: Spring ephemeral
Flowers: Showy
Underground structures: Corm
Uses: Will Naturalize
Resistances: Deer Resistant
Rabbit Resistant
Toxicity: Leaves are poisonous
Roots are poisonous
Other: Toxic if ingested
Propagation: Seeds: Stratify seeds: Soak seeds and warm stratification, then cool
Propagation: Other methods: Offsets
Pollinators: Various insects


Photo Gallery
Location: My garden in N E Pa. 
Date: 2017-09-16

Date: 2017-10-02

Date: 2017-10-02
Location: My Gardens
Date: September 23, 2017
Photo In Light Shade/Overcast
Location: Kyiv, Ukraine
Date: 2020-09-14
Photo by sedumzz
Location: From my garden. Poland.
Date: 2018-09-07
Location: From my garden. Poland.
Date: 2018-09-01
Location: DISCLAIMER: This is an old photo from an old phone. I don't know why, but the photos look "deep fried". sorry about that.
Location: Pennsylvania
Date: 2020-09-25
Location: From my garden. Poland.
Date: 2018-09-01
Location: My Gardens
Date: Late Summer 2009
Location: My Gardens
Date: Late Summer 2009
  • Posted by Marilyn (Kentucky - Zone 6a) on May 22, 2013 9:19 PM concerning plant:
    "Colchicum is a genus of perennial flowering plants containing around 160 species which grow from bulb-like corms. It is a member of the botanical family Colchicaceae, and is native to West Asia, Europe, parts of the Mediterranean coast, down the East African coast to South Africa and the Western Cape. In this genus the ovary of the flower is underground. As a consequence, the styles are extremely long in proportion, often more than 10 cm (4 in).

    The common names "autumn crocus", "meadow saffron" and "naked lady" may be applied to the whole genus or to many of its species; they refer to the "naked" crocus-like flowers which appear in late summer or autumn, long before the strap-like foliage which appears in spring.

    Colchicum autumnale and its cultivars are widely grown in temperate regions. Several other species, such as C. speciosum, C. album, C. corsicum and C. agrippinum, are also grown for their flowers.

    Colchicum melanthioides is probably the best known species from the tropical regions. In contrast to most temperate colchicums the flower and leaves are produced at the same time, the white flowers are usually a small corymb which is enclosed by white bracts. Close relatives (such as Colchicum scabromarginatum and Colchicum coloratum) have flowers with very short stalks and might be pollinated by rodents."

    Taken from wikipedia's page at:
Plant Events from our members
MrsBinWY On April 17, 2021 Seeds sown
4-17-2021: 66 seeds in milk jug, mix of species from NARGS Apr-21 (donated from L. Serowitz of Livonia, MI); soaked ~15 minutes in water, added 3% H2O2 for ~ 30 seconds; try 3 months warm, 3 months cold, 3 months warm, etc.; fridged on 8-29-2021; unfridged on 11-27-2021 & put in room temp (none emerging). Put outside on 3-20-2022.
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Discussion Threads about this plant
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Untitled by Boyed Dec 16, 2013 7:54 AM 1

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