Overview

Colchicum ritchii is a clump forming bulbs in the genus Colchicum, part of the Colchicaceae family, with deciduous foliage. Colchicum ritchii grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include cottage and informal garden, wildlife gardens, wildflower meadow, rock garden, underplanting of roses and shrubs and flower borders and beds.

About

Colchicum ritchii, or the Egyptian autumn crocus, is a plant species native to the southeastern Mediterranean east to the Arabian Peninsula.

About the genus

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.

Wikipedia contributors, "Colchicum", CC BY-SA 4.0Colchicum

Growing conditions

Best soil and position for Colchicum

Sunlight
Full sun, Partial shade
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
South-facing, East-facing, West-facing
Exposure
Sheltered
UK hardiness
H5

Plant details

Colchicum ritchii size, habit and characteristics

Plant type
Bulbs
Habit
Clump forming
Foliage
Deciduous
Suggested uses
Cottage and informal garden, Wildlife gardens, Wildflower meadow, Rock garden, Underplanting of roses and shrubs, Flower borders and beds

Care notes

Pruning and caring for Colchicum ritchii

Propagation
Seed, separate corms when dormant in summer
Pest resistance
Susceptible to slugs
Disease resistance
Susceptible to bulb grey moulds

Frequently asked questions

Where is the best place to plant Colchicum ritchii?

Colchicum ritchii prefers full sun and partial shade. It suits sheltered positions.

What soil does Colchicum ritchii need?

Colchicum ritchii is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Colchicum ritchii hardy in the UK?

Colchicum ritchii has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Colchicum ritchii?

Seed, separate corms when dormant in summer.