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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
clematis 'Rouge Cardinal'
Clematis can be deciduous or evergreen shrubs or herbaceous perennials, mostly climbing by twining leaf-stalks, and often with showy flowers. Some have attractive fluffy seedheads in autumn
Late Large-flowered clematis are deciduous climbers with large, star-shaped flowers to 15cm wide, opening on the current year's growth in summer and autumn
'Rouge Cardinal' is a vigorous climber with single, velvety crimson flowers to 15cm across with creamy-white filaments and red-brown anthers, opening from early-mid summer to early 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
MoistureMoist but well-drained
SoilSand, Clay, Chalk, Loam
Time to ultimate height
Plant in a moisture-retentive, well-drained soil, with the roots and base of the plant kept cool and shaded by other plants or a layer of pebbles at the base. Plant with the crown 5-8cm (2-3in) deep to encourage new shoots to grow from below ground level. Can be grown in containers at least 45cm (18in) deep and wide in a soil based potting compost
Propagate by layering or semi-hardwood cuttings
Suggested planting locations and garden types
Flower borders and beds Wall-side Borders
City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants
Pruning Pruning (clematis) group 3
Pests Young shoots may be troubled by aphids and caterpillars; petals can be eaten by earwigs
May suffer from clematis wilt and clematis slime flux
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
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