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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 French lavender
Family Lamiaceae
Genus Lavandula are small aromatic evergreen shrubs with usually narrow, simple, entire, toothed or lobed leaves and small tubular flowers in dense spikes in summer
Details L. stoechas subsp. stoechas is an aromatic dwarf shrub to 60cm tall, with narrow, grey-green leaves and short-stalked, dense, ovoid heads of tiny blackish-purple flowers surmounted by a tuft of purple bracts
Plant range W Mediterranean
Foliage Evergreen
Habit Bushy
Fragrance Flower
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H4
Full Sun
Aspect South-facing or West-facing
Exposure Sheltered
Chalk
Loam
Sand
MoistureWell-drained
SoilChalk, Loam, Sand
pHAcid, Alkaline, Neutral
Ultimate height 0.5-1 metres
Ultimate spread 0.5-1 metres
Time to ultimate height 2-5 years
Cultivation Grow in well-drained soil in a sheltered, sunny position
Propagation Propagate by seed or semi-hardwood cuttings
Suggested planting locations and garden types Flower borders and beds Garden Edging Coastal Patio & Container Plants Rock Garden City & Courtyard Gardens Cottage & Informal Garden
Pruning Pruning group 10
Pests Can get rosemary leaf beetle and cuckoo spit (froghoppers)
Diseases Grey moulds may be a problem
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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.