Bigleaf hydrangeas are cold tolerant to USDA zone 5 and heat tolerant through USDA zone 9. … See more

Old-fashioned bigleaf hydrangeas can reach large proportions, around 5-6' in much of North America. This large size often results in people pruning them to try to control t… See more

In USDA zones 4-6, bigleaf hydrangeas can take full sun, especially if they are mulched, and/or if they get regular irrigation. In USDA zones 7-9, a bit of morning su… See more

Moist, well-drained soil is best for bigleaf hydrangeas. They wilt easily, so a steady supply of moisture will keep your plant looking its best. A good 2-3" layer of mulch is also reall… See more

An application of a granular rose fertilizer in early spring is recommended for all bigleaf hydrangeas. In areas of extreme pH, either acidic or alkaline, yellow or pale leaves may develop an… See more