Euphorbia Humpty Dumpty

Description

Euphorbia characias ‘Humpty Dumpty’ – Mediterranean spurge

Botanical name: Euphorbia characias ‘Humpty Dumpty’
Common names: Mediterranean spurge
Family: Euphorbiaceae (spurge family)
Plant type: Evergreen perennial or sub-shrub
Habit: Compact, dense, mound-forming
Pot size: 2–3 litre pot
Eventual size: Approx. 50–60cm tall × 60cm spread
Foliage: Whorls of narrow, blue-green leaves densely packed on upright stems; evergreen
Flowers: Large, dense, rounded heads of long-lasting lime-green flower bracts in spring and early summer (March–June)
Scent: Not notably scented
Aspect / light: Full sun to partial shade
Soil: Well-drained; poor to average; drought-tolerant; dislikes wet; any pH
Hardiness: RHS H5 (hardy, to about −15°C); USDA zones 7–10
Exposure: Open, sunny; drought-tolerant
Native range: Garden form; the genus is native to Europe and beyond
Toxicity / pet & child safety: Caution — the milky sap is a serious skin and eye irritant, and the plant is harmful if eaten; always wear gloves and eye protection when cutting

Euphorbia ‘Humpty Dumpty’ is a compact Mediterranean spurge with dense blue-green evergreen foliage and big rounded heads of lime-green spring bracts. Superb architectural structure for sunny borders and gravel.

GardenAdvice notes

A neat, compact form of the bold Mediterranean spurge, ‘Humpty Dumpty’ forms a dense, rounded mound of blue-green evergreen foliage, topped in spring by large, showy heads of long-lasting lime-green bracts. Its architectural presence and year-round evergreen structure make it a superb plant for sunny borders, gravel gardens and Mediterranean-style plantings — and, being compact, it suits smaller gardens.

Growing & planting

Plant in spring or autumn in well-drained soil in full sun to partial shade — euphorbias thrive on poor, dry soils and dislike rich, wet ground. Improve heavy soil with grit. Space appropriately for size. Water only while establishing; thereafter they are drought-tolerant.

Care & maintenance

Once the flowerheads fade, cut the flowered stems right down to the base of the plant, leaving the new non-flowering shoots to grow on and flower the following year — this keeps the plant tidy and vigorous. Water only while establishing; keep it dry, especially in winter. Crucially, always wear gloves, cover your arms and protect your eyes when cutting or handling euphorbia, as the milky sap is a serious irritant. Wash any sap off skin immediately.

Propagation

• Cuttings: Take softwood cuttings in spring, dipping the cut ends in water to stop the sap bleeding.
• Seed: Can be raised from seed, and may self-seed gently.

Pests & diseases

Generally trouble-free in a sunny, well-drained spot. Its main enemy is wet, heavy soil. Euphorbia rust and aphids occasionally occur. Otherwise easy and architectural.

Uses in the garden

Superb as year-round architectural structure in sunny, gravel and Mediterranean-style borders and containers, where its dense blue-green evergreen mound and dramatic lime-green spring bracts earn their place.

Wildlife value

The long-lasting flowerheads are attractive to bees, hoverflies and other pollinating insects, particularly valuable in spring when few other plants are in flower.

Toxicity & safety

All euphorbias exude a milky white sap when cut or damaged, which is a serious irritant — it can cause painful skin rashes and burns, and is especially dangerous if it gets in the eyes. Always wear gloves, cover your arms and protect your eyes when cutting or handling it, wash any sap off immediately, and keep it away from children and pets. The plant is also harmful if eaten.

GardenAdvice tip

‘Humpty Dumpty’ gives you all the drama of the big Mediterranean spurges — that unbeatable acid-lime spring display and bold evergreen structure — on a compact plant that suits a smaller garden. Cut the flowered stems right down to the base as they fade, leaving the fresh shoots for next year, and always wear gloves and eye protection, as the milky sap is a serious irritant.

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