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PlantFiles: False Autumn Crocus, Showy Colchicum, Naked Ladies, Meadow Saffron
Colchicum speciosum

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Family: Colchicaceae
Genus: Colchicum (KOHL-chik-um) (Info)
Species: speciosum (spee-see-OH-sum) (Info)

Synonym:Colchicum bornmuelleri

8 members have or want this plant for trade.

Category:
Bulbs

Height:
6-12 in. (15-30 cm)

Spacing:
3-6 in. (7-15 cm)

Hardiness:
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Sun to Partial Shade
Light Shade
Partial to Full Shade

Danger:
All parts of plant are poisonous if ingested

Bloom Color:
Pale Pink
White/Near White

Bloom Time:
Late Summer/Early Fall
Mid Fall

Foliage:
Shiny/Glossy-Textured

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Non-patented

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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There are a total of 11 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Howard_C On Oct 12, 2004, Howard_C from St John's, NL wrote:

Colchicum speciosum is one of the best species and is the parent of many of the garden cultivars, like 'Lilac Wonder' & 'Violet Queen'. It is easy to grow in good garden soil here in St John's Newfoundland and increases well. I lift and re-plant every two or three years. As with all colchicums, it has large leaves in spring and early summer which must be allowed to die down naturally if you want more flowers in the autumn.

The true species has untesselated, reddish purple petals with a contrasting white centre in most cases and yellow anthers. Some of the pictures on this page are probably of garden hybrids since they do not all show these characteristics.

Regional...

This plant has been said to grow in the following regions:

Madison, Alabama
Garberville, California
Minneapolis, Minnesota
Neptune, New Jersey
Cincinnati, Ohio
Olympia, Washington



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