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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.
Other common names
clematis 'Venosa Violacea'
Clematis viticella 'Venosa Violacea' Clematis
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
Viticella Group are deciduous climbing shrubs with usually pinnate leaves, and nodding, single to double, open-bell-shaped flowers of small to medium-size, produced on the current year's growth in summer and early autumn
'Venosa Violacea' is a distinctive, medium-sized deciduous climber. Single open flowers up to 10cm in width, with 5-6 sepals are white, deeply edged and veined deep-purple with dark purple and white stamens. Flowers midsummer 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 West-facing or East-facing or South-facing or North-facing
Exposure Exposed or Sheltered
MoistureMoist but well-drained
SoilChalk, Clay, Loam, Sand
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
Pruning Clematis pruning: group three
Pests Young shoots may be troubled by aphids and caterpillars; petals can be eaten by earwigs
May suffer from clematis slime flux. Likely to be somewhat tolerant of clematis wilt
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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.