Sempervivum arachnoideum (0.7lt)
House leek
£2.50
Rosettes of fleshy green leaves with brown red tips, covered with fine silver webbing. Stems of pink flowers in mid to late summer. Add plenty of sand and grit to the planting area. Ideal for rockeries or green roofs where it will spread as a carpet of rosettes. Full sun. Height to around 10cm.