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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.
the RHS today and get 12 months for the price of 9
Other common names
rhubarb 'Grandad's Favorite'
Rheum are robust rhizomatous herbaceous perennials with large, simple or palmately lobed leaves and tall leafy stems bearing large panicles of tiny flowers
'Grandad's Favourite' produces "first early" growth. Plants are vigorous and high yielding, with thick, fairly sweet stems and good colour. Good leaf to stem ratio; suitable for showing
Toxicity Leaves mildly toxic if ingested
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
Exposure Sheltered or Exposed
MoistureMoist but well-drained
SoilSand, Chalk, Loam
pHAcid, Alkaline, Neutral
Time to ultimate height
Any fertile garden soil can be used for rhubarb as long as it is well-drained and in full sun. Crowns ("sets") can be cropped for ten or more years, though division may be necessary after about five years. Plant crowns in November or December and up to the beginning of March if necessary. A spring mulch of well-rotted organic matter 7cm (2 1/2in) deep will help to retain moisture but do not bury the crowns. Plants will also respond to watering during prolonged dry periods in summer. Apply a general fertiliser such as growmore in spring or summer at 70g per sq m (2oz per square yard)
Lift crowns between autumn and early spring (usually in November).Use a spade to divide the crown into sections each retaining a portion of the rhizome (thickened root) and at least one growing point. Sections from the outer part are better than the centres of old plants. Discard any old or decayed parts of the crown. Replant straight away or wrap in damp sacking until ready to plant
Suggested planting locations and garden types
Patio & Container Plants
Pruning Allow the foliage to die back naturally in autumn then cut away the old leaves to expose the growing points to winter cold
Pests Aphids, slugs and snails may be problematic
Honey fungus and a virus may be troublsome
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.