Join the RHS today and support our charitable work
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Free entry to RHS members at selected times »
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Help us achieve our goals
Join the RHS today and support our charity
I have forgotten my password
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
See what events are on near you and browse your bookmarked pages.
We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
When using this search
Search by plant name, key attributes or both to find plant details and a list of
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
© RHS 2003
the RHS today and get 12 months for the price of 9
Other common names
meadow saffron naked ladies
autumn crocus fog crocus meadow crocus Michaelmas crocus naked boys purple crocus upstart
Colchicum autumnale var. minor hort. Colchicum autumnale 'Wild Form'
Colchicum haynaldii Colchicum pannonicum Griseb. & Schenk.
Colchicum are cormous perennials with usually coarse, broadly strap-shaped leaves which appear with or after the goblet-shaped flowers
C. autumnale is a cormous herbaceous perennial to 15cm, with erect, strap-shaped leaves to 30cm in length, and in autumn, up to 6 crocus-like lavender-pink flowers 6cm in length
W & C Europe
Toxicity All parts are highly toxic by ingestion
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or North-facing or West-facing or East-facing
SoilChalk, Clay, Sand, Loam
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in moist but well-drained, deep, humus-rich, fertile soil. Intolerant of waterlogging. May be naturalised in turf
Propagate by seed, sowing in containers in an open frame when ripe or separate corms when dormant in summer
Suggested planting locations and garden types
Underplanting of Roses and Shrubs
Cottage & Informal Garden Patio & Container Plants Rock Garden Wildflower meadow
Pruning No pruning required
Pests May be damaged by slugs
Generally disease free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.