Very low maintenance, Cotoneaster Horizontalis Variegatus (Herringbone Cotoneaster, Wall Spray Cotoneaster) ground cover simply require a light trim after flowering to retain the symmetry of the plant and a generous mulch of well-rotted garden compost or manure around the base of the plant. They will perform best in full sun but are equally happy in partially shaded locations. One thing they do require is moderately fertile, moist but well-drained soil until established, when they will tolerate slightly drier soil. They will not thrive in soil that becomes waterlogged so add grit and well-rotted garden compost to clay soils before planting.
As a rough guide when planting Cotoneaster Horizontalis Variegatus as ground cover – 4 plants per square metre is adequate with a little patience, 6 will give better coverage, and 9-12 will make a weed supressing carpet very quickly.
How to grow Cotoneaster Horizontalis Variegatus
Position: Full sun, partial shade
Soil and site: Moderately fertile, well drained
Flowering time: Summer
Growth rate: Moderate
Ultimate height and spread: 45cm and to 100cm
Hardiness: Fully Hardy
Aftercare: Water well until established, avoiding soil becoming waterlogged. Trim in early Spring or late Autumn to maintain shape