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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
Brompton stock cluster-leaved stock
common stock gilliflower hoary stock hopes queen's stock wallflower stock
Matthiola arborescens Matthiola incana 'Brompton'
Matthiola can be annuals, perennials or subshrubs, with simple or lobed leaves and dense terminal racemes or panicles of fragrant, 4-petalled flowers
M. incana is a woody-based perennial, sometimes short-lived, with narrow, grey-green foliage. Upright spikes of sweet-scented pink, mauve, purple, violet or white flowers, up to 2.5cm across, are produced in late spring and early summer. Many cultivars of this species are grown as annual or biennial bedding plants, or for cut flowers
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
MoistureMoist but well-drained
SoilChalk, Loam, Sand
Time to ultimate height
Grow in a sunny, sheltered bed where the soil is well-drained and neutral to slightly alkaline
Propagate by seed sown in gentle heat in early spring or sow in midsummer and protect young plants over winter
Suggested planting locations and garden types
Flower borders and beds Cut Flowers
City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants
Pruning Cut back after flowering
Pests Susceptible to aphids, flea beetles and cabbage root fly
May be affected by club root, a downy mildew, root rot and a virus
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