Care schedule
- Watering
- Deep soak weekly, 1–2 inches Source: UMass Amherst Extension
- Feeding
- Early spring and after flowering Source: UMass Amherst Extension
- Light
- Morning sun, afternoon shade Source: University of Georgia Extension
- Frost
- Tolerates light frost in most climates · typical
Each line links to its published source. Your pot, light, season and climate matter more than the calendar.
Care tips
- Wilts on hot afternoons; check the soil before watering more.
- Many bloom on old wood — prune right after flowering, not in spring.
- Soil pH can shift flower color.
In GoodKeap
Save your bigleaf hydrangea to get these reminders in Upkeap, log each watering and feeding, add progress photos, and see weather prompts for your address.
From university extension guides
Each line links to the published guidance it came from.
Light
Morning sun, afternoon shade
Bigleaf hydrangeas prefer a location with morning sun and afternoon shade to avoid foliage wilting and sunburn.
Source: University of Georgia ExtensionChecked Oct 2026
Watering
Deep soak weekly, 1–2 inches
Hydrangeas need deep soaking once a week to provide one inch of water, increasing to two inches during hot weather.
Source: UMass Amherst ExtensionChecked Oct 2026
Feeding
Early spring and after flowering
Fertilize hydrangeas with a balanced fertilizer in early spring and again after the plants have finished flowering.
Source: UMass Amherst ExtensionChecked Oct 2026