Did you know?
The flower color of Bigleaf Hydrangeas (Hydrangea macrophylla) can be manually changed, except for white cultivars. Aluminum absorption is the key, as acidic soils allow their roots to absorb aluminum from the soil, while alkaline soils prevent aluminum absorption. By adjusting the pH of the soil near the roots, you can change the color of the flowers.
Up to 7 feet tall and wide
Flowers, Fruit, Foliage
Showy sterile flowers grow in large, rounded clusters and bloom throughout spring and summer. Large, dark green leaves form a dense, rounded habit.
Pests & Diseases
Blister rust, bacterial wilt, aphids, Japanese beetles, spider mites, slugs
Great as a specimen, border, accent, massing, or hedge
Plant in moist, well-drained soil in an area with full sun to half shade. These shrubs are not cold hardy, but they can tolerate a variety of soil types, acidity, salinity, and high temperatures. Cover them with cardboard or a tarp in winter months to avoid frost damage. Prune in mid-summer to avoid cutting off new buds.