Oxalis debilis

RHS Plant Profile
large-flowered pink sorrel

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Bulbs Herbaceous Perennial Houseplants

A clump-forming perennial to 20cm with bright green leaves composed of three, heart-shaped leaflets. Small clusters of pink flowers appear in summer and early autumn

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Oxalidaceae
Native to GB/Ireland
No
Foliage
Deciduous
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

How to Grow

Cultivation

Grows from a scaly bulb, but also produces fleshy storage roots, and fibrous roots. Persistent, and able to spread quickly via bulbils if soil is disturbed so best confined to a container. May also be grown as a houseplant. See oxalis for more information

Propagation

Propagate by separating bulbils

Suggested planting locations and garden types

  • Houseplants
  • Patio and container plants

Pruning

No pruning required

Pests

May be susceptible to slugs and snails outdoors

Diseases

May be susceptible to rust diseases