Overview
Euphorbia pentagona is a matforming herbaceous perennial in the genus Euphorbia, part of the Euphorbiaceae family, with deciduous foliage. Euphorbia pentagona grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H7. Suggested uses include coastal, city and courtyard gardens, cottage and informal garden and wildlife gardens.
About
Euphorbia pentagona is a medium-green Euphorbia; starts off as having a pentagonal prism shape where each vertex is extruded outwards, and each side is a mild concavity, along the height of the euphorb. The cross-sectional polygonal shape can gain extra vertexes as new branches grow from the sides. Often branches grow from where a spine once was, or should have been. It is native to Africa, Cape Provinces, ZA and Eastern Cape. In the garden it prefers full sun and most soil types. In UK gardens it is fully hardy throughout the UK (RHS H7). Suggested uses include coastal, city and courtyard gardens, cottage and informal garden and wildlife gardens. It tolerates soil of any pH, moist but well-drained, well-drained conditions and south-facing and west-facing aspects. Plant out after last frost in fertile, well-drained soil.
Wikipedia contributors, CC BY-SA 4.0 — Euphorbia pentagona
Growing conditions
Best soil and position for Euphorbia
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
Euphorbia pentagona size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Matforming
- Foliage
- Deciduous
- Suggested uses
- Coastal, City and courtyard gardens, Cottage and informal garden, Wildlife gardens
Care notes
Pruning and caring for Euphorbia pentagona
- Propagation
- Propagation is by division in early spring or propagate by seed in autumn or spring
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to a rust
Frequently asked questions
Where is the best place to plant Euphorbia pentagona?
Euphorbia pentagona prefers full sun. It suits exposed and sheltered positions.
What soil does Euphorbia pentagona need?
Euphorbia pentagona is adaptable and grows happily in most soil types, including chalk, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to well-drained.
Is Euphorbia pentagona hardy in the UK?
Euphorbia pentagona has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Euphorbia pentagona?
Propagation is by division in early spring or propagate by seed in autumn or spring.
More in the Euphorbia genus
- Euphorbia ammak

- Euphorbia atropurpurea

- Euphorbia balsamifera

- Euphorbia bupleurifolia

- Euphorbia burmannii

- Euphorbia canariensis

- Euphorbia candelabrum
- Euphorbia ceratocarpahorned spurge