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Alpine RockeryConservatory Greenhouse

Oxalis massoniana
  • RHS AGM

Masson's wood sorrel

O. massoniana is a dwarf, bulbous, clump-forming perennial. The leaves have three narrow leaflets and are arranged in whorls around the fine stems. The flowers open pale orange with a yellow eye from dark orange buds, in autumn

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Size
Ultimate height
Up to 10cm
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green
Autumn Orange Yellow Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed
Hardiness
H2
Botanical details
Family
Oxalidaceae
Native to the UK
No
Foliage
Deciduous or Evergreen
Habit
Clump forming
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
South Africa

How to grow

Cultivation

Grow in an alpine house in a container of loam based potting compost with added grit. Water well in autumn and winter but keep dry in summer

Propagation

Propagate by division

Suggested planting locations and garden types
  • Rock garden
  • Patio and container plants
Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to a rust

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