When to plant Orpine?
Best month and method — Hylotelephium telephium
Plant your orpine in March, April, May, September and October — the optimal month is usually May.
You're in the planting season right now — a good moment to start.

Spacing
35 cm
≈ 8 plants
For an X m² border, calculate: X × 8 plants.
Step by step: plant orpine
Orpine thrives in full sun or partial shade, making it a versatile choice for borders, gravel gardens, and wildlife-friendly planting schemes. It tolerates a wide range of soil types—loam, sandy soil, and chalky soil—but demands good drainage above all else. Avoid heavy clay or waterlogged ground, as the fleshy roots are prone to rot in wet conditions. Plant orpine in March, April, or May for spring planting, or in September and October for autumn planting. Both windows work well, though autumn planting allows roots to establish before winter. Space plants 35 cm apart to allow for their mature spread of 30–50 cm. If planting in groups, odd numbers (three or five) create a more natural look. Prepare the soil by removing weeds and incorporating coarse grit or horticultural sand if drainage is poor. Dig a hole slightly larger than the root ball, position the plant so the crown sits level with the soil surface, and backfill gently. Firm the soil around the base with your hands to eliminate air pockets. Water lightly after planting to settle the roots, but avoid saturating the soil. Orpine is drought-tolerant once established and resents overwatering. A thin layer of gravel mulch around the base helps suppress weeds and improves drainage, but keep it clear of the crown to prevent rot. Staking is unnecessary; the sturdy stems support themselves even when laden with flowers. In exposed sites, choose a spot with some shelter from strong winds to prevent stems flopping, though this is rarely a problem with healthy, well-drained plants.