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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 Sabra spike sage
Family Lamiaceae
Genus Salvia can be annuals, biennials, herbaceous or evergreen perennials, or shrubs. They have paired, simple or pinnately lobed, often aromatic leaves and 2-lipped flowers in whorls, forming simple or branched spikes or racemes
Details S. confertiflora is a tender perennial to 1.2m tall, becoming woody at the base, with pungently-scented, ovate leaves and slender spikes of small scarlet flowers in late summer and autumn
Plant range Brazil
Foliage Deciduous
Habit Bushy
Fragrance Foliage
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H2
Full Sun
Aspect South-facing
Exposure Sheltered
Chalk
Loam
Sand
MoistureWell-drained
SoilChalk, Loam, Sand
pHAcid, Alkaline, Neutral
Ultimate height 1-1.5 metres
Ultimate spread 0.1-0.5 metres
Time to ultimate height 2-5 years
Cultivation Under glass grow in well-drained, loamless or loam-based potting compost (JI No.2 or 3) in full light with shade from hot sun; can be moved outdoors during the summer months
Propagation Propagate by seed in containers in a cold frame in spring. Propagate by softwood cuttings in spring or early summer or semi-ripe cuttings in late summer or autumn with bottom heat
Suggested planting locations and garden types Wall-side Borders Flower borders and beds Coastal Patio & Container Plants City & Courtyard Gardens Cottage & Informal Garden
Pruning Pruning group 9
Pests Under glass may be prone to aphids, glasshouse red spider mite, glasshouse whitefly; outdoors may be attacked by slugs and snails, capsid bug, rosemary beetle and leafhoppers
Diseases Generally disease free but may be subject to foot and root rots under glass
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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.