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ShrubsBeddingSynonym

Plectranthus argentatus
  • RHS AGM

silver spurflower

P. argentatus is a spreading evergreen sub-shrub with densely hairy, silvery stems, grey-green leaves and small tubular bluish-white flowers in short racemes in summer

Synonyms
Plectranthus argentatus
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Grey Silver
Summer Blue White Grey Silver
Autumn Grey Silver
Winter Grey Silver
Position
  • Partial shade
Aspect

South–facing or West–facing or East–facing

Exposure
Sheltered
Hardiness
H1C
Botanical details
Family
Lamiaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Genus

A genus of annual or perennial herbs or shrubs, some of which can be succulent or tuberous in nature, and one of the easiest plants to propagate. Their velvety leaves add vibrant shades of red, pink, green and purple to beds and borders, pots and containers

Name status

Correct

Plant range
Australia

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How to grow

Cultivation

Best grown in a well-drained soil in partial shade, used as foliage plant either in beds or in a container. Can be grown under glass but shade from hot sun

Propagation

Propagate by seed or semi-hardwood cuttings

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Patio and container plants
  • Flower borders and beds
Pruning

No pruning required

Pests

Generally pest free

Diseases

Generally disease free

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