Give Rosa 'Cloud 10TM' the best start by planting it where it can climb and where air can move freely through the canes. You will get the heaviest bloom and strongest growth with full sun, but it can also perform in part shade. Its pure white, very full flowers are borne in clusters and can rebloom through the season, adding a classic look to fences, trellises, and arbors.
Plant in well-drained soil enriched with compost, water deeply while it is establishing, and keep the root zone evenly moist during hot, dry stretches. A 2-3 inch mulch layer helps conserve moisture and keeps soil temperatures steadier; keep mulch pulled back from the crown. Feed in spring as new growth starts and again after major flushes of bloom, following your preferred rose fertilizer schedule.
Train long canes by tying them in a fan or along a horizontal support to encourage more flowering laterals. Prune in late winter or early spring by removing dead, damaged, or crossing wood, and shorten side shoots as needed to keep the framework tidy. Deadhead if you want a neater look, but also allow some spent blooms to remain if you are not concerned about appearance. Check regularly for pests and common rose diseases and address issues early for the healthiest, most floriferous display.