Alpine Autumn Crocus (Colchicum Alpinum) is a perennial bulb in the Colchicaceae family with moderate care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 4-7. This plant is toxic to cats and dogs — keep it out of reach of pets.

Colchicum alpinum is a corm-forming perennial herbaceous plant with delicate pale rosy-purple flowers that bloom in late summer to autumn.

Alpine Autumn Crocus

Alpine Autumn Crocus

Colchicum Alpinum

Colchicum alpinum is a corm-forming perennial herbaceous plant with delicate pale rosy-purple flowers that bloom in late summer to autumn.

Quick Facts

Type
bulb
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Full Sun, Partial Shade
Hardiness Zones
4-7

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:loamy, sandy, rocky
Indoor:No
Outdoor:Yes
Garden Use:ornamental, late-season flowering

Care Calendar

Monthly care tasks for Alpine Autumn Crocus

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Alpine Autumn Crocus
Alpine Autumn Crocus detail

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Taxonomy

Family:Colchicaceae
Genus:Colchicum