Bigleaf hydrangea offers iconic, mop‑head or lacecap clusters in pink, blue or white, depending on soil pH. Deciduous shrubs 1–1.5 m thrive in morning sun and afternoon shade with moist, fertile soil. Dead‑head spent blooms in spring, prune lightly to preserve flowering wood. Hardy to −15 °C; mulch yearly to conserve moisture and insulate roots.