How to grow stonecrop
Overview
Stonecrop (Sedum spurium) is a low-growing, mat-forming succulent perennial from the Crassulaceae family. It is grown for its fleshy, colourful foliage and star-shaped flowers, and is valued as a drought-tolerant groundcover for sunny, dry sites.
Varieties
- Sedum spurium 'Dragon's Blood' — Bronze-red foliage that deepens in full sun, with bright pink flowers. Popular in Australian rock gardens.
- Sedum spurium 'Tricolor' — Green leaves edged in white and pink; a compact variegated form for pots and borders.
Soil Preparation
Stonecrop needs a free-draining, gritty or sandy soil with a pH around 6.0–7.5. Improve heavy clay by adding coarse sand, gravel, or pumice. Avoid organic-rich mixes; it prefers lean conditions.
Growing Guide
Plant stonecrop in full sun with sharply drained soil; it thrives in poor, sandy or gravelly spots. Space divisions or cuttings 20–30 cm apart to form a dense mat. Avoid rich or waterlogged soil. In cool zones, plant in spring after frost; in Mediterranean zones, autumn planting suits the wet season. It spreads by stems rooting at nodes.
Care
Feed with a balanced slow-release fertiliser in early spring. After flowering, prune back leggy stems to maintain a compact shape. Remove dead leaves and debris from the mat to prevent rot and allow air circulation.
Companion Planting
Good companions include other drought-tolerant plants: sedums, sempervivums, thyme, lavender, and ornamental grasses. Avoid planting near moisture-loving plants like ferns or hostas that will keep the soil too wet.
Common Pests & Risks
Aphids may cluster on new growth; blast off with water or use insecticidal soap. Root rot is the main disease, caused by overwatering or poor drainage. Prevent by planting in free-draining soil and watering sparingly. Mealybugs can also appear in humid conditions.
Troubleshooting
Yellow leaves: usually overwatering or poor drainage; let soil dry out. Leggy growth: too much shade or rich soil; move to full sun. Brown leaf edges: sunburn or salt stress; water at base. Stems rotting: root rot from wet soil; replant in dry mix. No flowers: insufficient light; ensure full sun.