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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.
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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 1998
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Other common names
royal fern blooming fern
bog onion buckhorn brake common flowering fern ditch fern herb Christopher hog onion kidney fern king fern osmund royal osmund the waterman royal osmund fern rusty fern water fern
Osmunda are medium-sized to large deciduous ferns, usually from wet places, with erect or arching, pinnate or bipinnate fronds, bearing spores either on modified pinnae or on separate, smaller fronds
O. regalis is a robust deciduous fern forming a large clump of bipinnate fronds to 2.5m in height, bearing rusty-brown spore-bearing pinnae at the tips; foliage turns attractive red-brown in autumn
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
Exposure Exposed or Sheltered
MoisturePoorly-drained, Moist but well-drained
SoilClay, Loam, Chalk
pHAcid, Neutral, Alkaline
Time to ultimate height
Easy to grow in most cool, moist, lightly shaded sites and will grow in full sun if given plenty of moisture. Will tolerate alkaline soils if plenty of fibrous compost is incorporated. Useful for very wet sites
Propagate by sowing spores as soon as ripe or by division in early spring or autumn
Suggested planting locations and garden types
Flower borders and beds Low Maintenance Underplanting of Roses and Shrubs
Cottage & Informal Garden Wildflower meadow
Pruning Dead or damaged fronds may be removed as necessary
Pests Generally pest free outdoors
Generally disease free outdoors
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
Buy from £5.99 at the RHS Plants Shop
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