|   
| Identification |  | Genus 
Colchicum
Species 
autumnale
Variety 
Cultivar 
Common names 
autumn crocus  
colchicum  
meadow saffron
Family 
COLCHICACEAE
Specimen number 
S11722
Data source 
DyePl p58;HtZn p98;MedPl p191 |  
 
| Life cycle |  | Life form 
Terrestrial
Life cycle 
Seasonal bulb
Life span 
1 - 3 years
Annual cycle 
Not applicable
Stature 
Flower
Growth form 
Not applicable
Growth habit 
Various
Overall height 
1'
Overall spread |  
 
| Climate |  | Sunshine 
Full sun to light shade
Water 
Moist, well drained
Optimal soil texture 
Various
Acceptable soil pH 
Neutral
USDA hardiness 
USDA zones 04a-09b
AHS heat zones 
Heat zones 09-01
Sunset climate zones 
Not classified |  
 
| Garden |  | Suitable for gardens 
yes
Nursery 
Unknown
Compost 
no
Size at acquisition 
Unknown
Garden location 
Unknown
Garden notes 
Black is the most typical color produced by Colchicum autumnale.  Colchicum was used in Bosnia and Herzegovina for dyeing.    Colchicum (also known as autumn crocus and meadow saffron) can survive very cold winters with annual averages as low as -30� Fahrenheit.  This plant needs summer days with high heat.  This species likes full sun to light shade.  It prefers moist, well drained soils. |  
 
| Special qualities |  | Tolerates drought 
no
Tolerates high humidity 
no
Tolerates seaside conditions 
no
Insect resistant 
no
Disease resistant 
no
Deer resistant 
no
Best uses 
 
Symbiosis 
Attracts butterflies 
no
Attracts hummingbirds 
no
Autumn foliage 
no
Colorful berries 
no
Desirable qualities 
 
Other interest 
 
Other interest color 
Other interest period |  
 
| Adverse factors |  | Common pests 
Poisonous parts 
Whole plant
Poisonous indications 
Internal poison 
no
Dermatologic poison 
no
Livestock poison 
no
Mechanical injury 
no
Hay fever pollen 
 
Hay fever season 
 
Adverse qualities |  
 
| Herbal medicine |  | Medicinal properties 
Medicinal parts 
Corm  
Seeds
Has medicinal uses 
yes
Do not self-administer 
yes
Do no use if pregnant 
no
Legally restricted 
yes
Toxicity precautions 
It is highly toxic
Medicinal notes 
Colchicum autumnale is only to be administered with proper professional knowledge.  Colchicum (sometimes called autumn crocus and meadow saffron) is not permitted in some countries.  The corm and the seeds are used in herbal preparations.  It is highly toxic.  This whole plant is toxic. |  
 
| Traditional uses |  | Parts used 
Traditional uses 
Contemporary uses 
Fragrance 
Fragrance parts 
Fragrance intensity 
 
Fragrance category 
 
Dye parts 
Dye color 
black |  
 
| Cultivation |  | Propagule 
Bulb
Pollination method 
 
Planting style 
 
Crop spacing 
 
Row spacing 
 
Cold frame 
Planting period 
 
Harvesting period 
 
Frost tolerance 
 
Heat requirement 
 
Fertilizer 
Typical
Time to harvest |  
 
| Nutrition |  | Is edible 
no
Culinary uses 
Nutritional value 
Edible parts 
Description of edible parts
Flavor / texture |  
 
| Horticulture |  | Horticulture notes 
Propagation of Colchicum autumnale can be achieved using its bulbs.    Colchicum (in some places called autumn crocus and meadow saffron) may have originated from Bosnia and Herzegovina. |  
 
| Herbarium |  | Tag needs printing 
no
Collection notes 
Colchicum autumnale is a seasonal bulb.    Flowers are borne during the month of September.  Most often the flowers occur in either pink or lavender, with an accent in yellow. |  Page 1255 of 4998 |