Euphorbia abyssinica

RHS Plant Profile
Abyssinian spurge

Synonyms

Euphorbia obovalifolia

Cactus Succulent Houseplants Conservatory Greenhouse

A tree-like succulent often reaching up to 10m high in its native habitat but more commonly grown as a conservatory or houseplant in this country thus restricting its growth. Individual stems are deeply ribbed with wavy rib edges that have pairs of short spines; if kept moist in a warm growing season, small, narrow leaves may emerge from the top of the stems. Small yellowish flowers are followed by fruits that start yellowish-orange before turning a reddish colour

Position

Full sun

Soil Types

Loam, Sand

Max Height

8-12 metres

Max Spread

4-8 metres

Size

Time to Maturity
10–20 years
Max Spread
4-8 metres
Max Height
8-12 metres

Growing Conditions

Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness
H2
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Euphorbiaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Columnar upright
Potentially harmful
Humans/Pets: IRRITANT to skin/eyeharmful if eaten. Wear gloves and other protective equipment when handling. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus
Euphorbia can be annuals, perennials, shrubs or succulents, with milky sap and small flowers held within cupped, often colourful bracts
Name Status
Correct
Plant Range
NE Africa

How to Grow

Cultivation

Grow indoors in equal quantities of peat-free, loam-based potting compost and grit in full light. Water moderately when in growth and keep dry in winter. In the growing season feed a low nitrogen liquid fertiliser 2 or 3 times. See houseplant cacti and succulent cultivation for more details.

Propagation

Propagate by seed sown at 15-18°C in early spring or stem cuttings in spring or early summer

Suggested planting locations and garden types

  • Architectural
  • Houseplants
  • Patio and container plants
  • Conservatory and greenhouse

Pruning

No pruning required but can be cut back to restrict size

Pests

May be susceptible to mealybugs, glasshouse whitefly and glasshouse red spider mite

Diseases

May be susceptible to powdery mildews and root rots