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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:
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.
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Other common names
Oenothera can be annuals, biennials or perennials, upright or spreading in habit, with simple or lobed leaves and bowl-shaped, white, yellow or pink flowers over a long period in summer
O. macrocarpa is an herbaceous perennial to 15cm in height, with trailing leafy stems to 30cm in length. Leaves narrowly oblong, with conspicuous silvery midribs; flowers solitary, 10-12cm in width, bright yellow, appearing from late spring to early autumn
Central southern USA
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 East-facing
SoilChalk, Loam, Sand
pHAlkaline, Neutral, Acid
Time to ultimate height
Grow in poor to moderately fertile, well-drained soil in full sun; ideal for stony soil. Protect from excessive winter wet
Propagate by seed sown in pots in a cold frame in early spring
Suggested planting locations and garden types
Banks and Slopes Flower borders and beds Garden Edging
City & Courtyard Gardens Cottage & Informal Garden Gravel Garden Mediterranean Climate Plants Patio & Container Plants Rock Garden
Pruning No pruning required
Pests Damage by slugs may be a problem
Prone to leaf spots, mildews and root rot
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.
Join the RHS today and get 12 months for the price of 9