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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.
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Other common names
Italian arum 'Marmoratum'
Arum italicum 'Pictum' Arum italicum
Arum italicum var. pictum
Arum are tuberous perennials with simple, arrow-head shaped leaves and tiny flowers hidden, at the base of a yellow or purple, club-shaped spadix, within a showy, hood-like spathe, and followed by red berries
'Marmoratum' is a tuberous perennial to 35cm, with large, arrow-shaped dark, glossy green leaves veined creamy-white and appearing in autumn. Large greenish-yellow spathes with a yellow spadix are followed by showy spikes of orange-red berries
Toxicity All parts are highly toxic by ingestion, skin and eye irritant. Wear gloves and other protective equipment when handling
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect East-facing or South-facing or North-facing or West-facing
SoilChalk, Loam, Sand
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in moist but well-drained humus-rich soil and plant 10 to 15cm deep
Division of clumps of tubers should take place after flowering. Alternatively, propagate by seed sown in autumn having removed the fleshy pulp
Suggested planting locations and garden types
Underplanting of Roses and Shrubs Flower borders and beds
Cottage & Informal Garden
Pruning No pruning required
Pests Generally pest free
Generally disease free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.