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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:
© RHS 1987
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Other common names
wood sorrel 'Ione Hecker'
Oxalis enneaphylla 'Ione Hecker'
Oxalis can be annuals or perennials, with fibrous, bulbous or rhizomatous rootstocks, palmately divided leaves and funnel-shaped or bowl-shaped flowers that mostly close in dull weather and at night
'Ione Hecker' is a clump-forming rhizomatous perennial to 8cm in height, with blue-grey, divided leaves and funnel-shaped, dark-veined, purple-violet flowers 3cm across
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 West-facing
SoilChalk, Loam, Sand
pHAlkaline, Neutral, Acid
Up to 10 cm
Time to ultimate height
Grow in moderately fertile, humus-rich, well-drained in full sun. Can also be grown in a container in an alpine house
Propagate by division in spring; small sections of the rhizomes root readily with bottom heat
Suggested planting locations and garden types
Gravel Garden Patio & Container Plants Rock Garden
Pruning No pruning required
Pests Damage by slugs and snails may be a problem
May be subject to a rust
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
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Join the RHS today and get 12 months for the price of 9