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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.
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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.
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Other common names
African lily 'Bray Valley'
Agapanthus are clump-forming perennials with narrowly strap-shaped leaves, evergreen in some species, and erect stems bearing umbels of funnel-shaped blue or white flowers
'Bray Valley' is a clump-forming perennial with narrowly strap-shaped leaves and rounded umbels of small mid blue flowers with darker veining held on upright stems to 90cm tall in summer
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 East-facing
MoistureMoist but well-drained
SoilChalk, Loam, Sand
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in fertile, moist but well-drained soil in full sun or grow in a container. In cold areas, mulch well overwinter and take containers under cover. See agapanthus cultivation
Propagate by division every three to four years in spring
Suggested planting locations and garden types
Cut Flowers Drought Resistant Flower borders and beds Wall-side Borders
Coastal City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants Mediterranean Climate Plants
Pruning In late autumn remove any remaining leaves, but seedheads can be left as they look attractive over winter
Pests May be affected by agapanthus gall midge
A virus disease may be a problem
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.