Rosa 'Iceberg' is a classic floribunda rose grown for its generous clusters of clean white blooms and reliable repeat flowering. You will get the best performance in full sun, where it tends to bloom most heavily and keep a strong, upright shrub form. Mature size is commonly about 48-60 inches tall with a spread around 36-48 inches, making it a great choice for beds, borders, and small group plantings.
Plant in fertile, well-drained soil and water deeply to establish, then water as needed during hot, dry stretches. Mulch helps keep roots cool and soil moisture more even. Deadhead spent clusters to encourage fresh flushes of flowers through the season, and give the plant good air circulation for healthier foliage.
Prune in late winter or very early spring to shape and to encourage vigorous new canes. Feed during the growing season according to your preferred rose program, and keep the base of the plant clean of fallen leaves. In USDA Zones 5-8, this rose is a dependable landscape shrub for long-season color and cut blooms.
Use it as a bright white focal point, a repeating accent along a path, or a clean, formal mass where its continuous flowering can be enjoyed up close.