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Alpine RockeryBulbs

Oxalis melanosticta

black-spotted wood sorrel

A bulbous perennial with velvety, pale green, trefoilleaves with silvery hairs that develop in autumn together with the funnel-shaped yellow flowers. The plant remains green in winter and spring, and is dormant in summer

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Size
Ultimate height
Up to 10cm
Time to ultimate height
5–10 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Grey Silver Green
Summer
Autumn Yellow Grey Silver Green
Winter Grey Silver Green
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed
Hardiness
H3
Botanical details
Family
Oxalidaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus

Oxalis can be annuals or perennials, with fibrous, bulbous or rhizomatous rootstocks, palmately divided leaves and funnel-shaped or bowl-shaped flowers that mostly close in dull weather and at night

Name status

Correct

Plant range
S Africa (Cape)

How to grow

Cultivation

Grows best in full sun in moderately fertile, well-drained, humus-rich soil. Suitable for the rock garden, raised beds troughs or alpine house

Propagation

Propagate from seed (indoors), sown with moderate heat in late winter or early spring

Suggested planting locations and garden types
  • Patio and container plants
  • Cottage and informal garden
  • Conservatory and greenhouse
Pruning

No pruning required

Pests

Generally pest-free

Diseases

May be susceptible to to a rust

Get involved

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.