Icecap is a compact, rounded shrub rose that produces flush after flush of pure white, ruffled blooms. You will get the best flower production in full sun, with good air movement and well-drained soil. This variety is a great choice for foundations, beds, and low hedges where you want clean color and steady bloom through the season.
Plant it where it can receive at least 6 hours of sun, then water deeply after planting and keep moisture consistent while it establishes. Once rooted in, let the top of the soil dry slightly between waterings; avoid constantly soggy conditions. A 2-3 inch mulch layer helps even out moisture and reduces stress during hot spells.
Expect a mature size around 24-30 inches tall and 36-42 inches wide. Space plants so they have room to fill out without crowding. Deadhead if you want a tidier look and faster repeat, but you can also let spent blooms drop naturally if you prefer a lower-maintenance routine.
Prune in late winter or early spring, removing dead or weak stems and shaping the plant to encourage fresh, vigorous growth. Feed with a balanced rose fertilizer as new growth starts, and repeat according to your fertilizer directions for steady flowering.