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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:
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Other common names
royal fern 'Cristata'
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
'Cristata' is a robust deciduous fern, slowly forming a massive clump, with fronds bipinnately divided, the fronds, pinnae and pinnules forked or crested at the tips; fertile fronds are tipped with rusty-brown spore-bearing segments in summer
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 division in early spring or autumn
Suggested planting locations and garden types
Flower borders and beds
City & Courtyard Gardens Cottage & Informal Garden
Pruning Dead or damaged fronds may be removed as necessary
Pests Generally pest free outdoors
Generally disease free outdoors
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Join the RHS today and get 12 months for the price of 9