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Herbaceous PerennialAlpine Rockery

Chrysogonum virginianum

golden knee

A spreading, mat-forming perennial to a height of 25cm, with oblong, heart-shaped slightly hairy green leaves. In mild winters it is evergreen. Flowers appear from early spring to late summer and are five-petalled and yellow

Other common names
golden star
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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Sand
Loam
Chalk
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Yellow Green
Summer Yellow Green
Autumn Green
Winter Green
Position
  • Full sun
  • Partial shade
Aspect

West–facing or South–facing or North–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Asteraceae
Native to GB / Ireland
No
Foliage
Semi evergreen
Habit
Matforming
Genus

A genus of mat-forming, low-growing, rhizomatous semi-evergreen perennials with toothed, dark green foliage and star-shaped, bright yellow flowers in spring

Name status

Correct

Plant range
E USA

How to grow

Cultivation

Grow in a woodland-type environment - deep moist soil enriched with leaf mould or other soil conditioner. Grow in sun or partial shade

Propagation

Propagate by seed, in a cold frame or sheltered place outside, as soon as ripe. Divide runners in spring or autumn

Suggested planting locations and garden types
  • Banks and slopes
  • Flower borders and beds
  • Ground cover
  • Underplanting of roses and shrubs
Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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