Hen & Chicks Cactus Mixed Seeds - Sempervivum - HARDY PERENNIAL - GORGEOUS House Leeks Seed - Zones 5 - 9 (0100 Seeds - 100 Seeds) Hen & Chicks Cactus Mixed Seeds Sempervivum - HARDY PERENNIAL GORGEOUS House Leeks Seed Zones 5 - 9 Sempervivum forms a neat bright rosette of foliage that often produces offsets that cluster around it. Hence the name Hen and Chicks. This mix contains several species ranging in color from grey-green, to light green to deep maroon. The blooms also vary in colors of yellow and pink shades. Very easy to grow from seed. Hardy in zones 5-10. Full sun. Planting Instruction: Sow in trays, pots, or jiffy mix in a warm location to maintain an optimum temperature of 65-70F (Top of Refrigerator works fine for us during the winter). Sow in well drained compost, just covering the seeds with compost. Sometimes slow to germinate; takes anywhere from 2-8 weeks. Keep in mind this is a mix variety and some varieties take longer than other to germinate. Winter hardy at zone 5-9 and once established they require very little if any care at all.