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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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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.
© RHS 2002
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Other common names
white anemone clematis
Clematis anemoniflora Clematis montana f. grandiflora
Clematis montana 'Grandiflora' Clematis 'Grandiflora'
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
Montana Group clematis are vigorous deciduous climbers with single, 4-petalled flowers opening in late spring and early summer
C. montana var. grandiflora is a very vigorous large deciduous climber with trifoliate leaves. Single pure white flowers to 7cm across from late spring to early summer with occasional later flowers.
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 or North-facing or East-facing
Exposure Sheltered or Exposed
MoistureMoist but well-drained
SoilChalk, Clay, Sand, 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 shoots to grow from below ground level. Best in a sheltered sunny situation
Propagate by layering or semi-hardwood cuttings
Suggested planting locations and garden types
Pruning Pruning (clematis) group 1
Pests Young shoots may be troubled by aphids and caterpillars; petals can be eaten by earwigs
May suffer from slime flux
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
white anemone clematis
Buy from £14.99 at the RHS Plants Shop
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Join the RHS today and get 12 months for the price of 9