When Should Incredible Hydrangeas Be Fertilized?

Incrediball hydrangeas are hardy and easy to care for, growing in USDA plant hardiness zones 4-8 and potentially hardy to zone 3 in a suitable microclimate. Space them five to six feet apart, center on center, and they can create privacy hedges as they grow. Transplant young shrubs when they’re dormant during early spring.

For optimal growth, fertilize the Incrediball hydrangea once in the spring with a 15-30-15 formula or one that’s similar. Avoid fertilizing after August, as this can encourage new growth that may not harden off before winter. Regular watering is necessary, especially during periods of hot, dry weather.

Incrediball hydrangeas have the largest snowball flowers of any hydrangea on the market and are easy to care for. For hydrangeas planted in ground, fertilize once in the spring with a 15-30-15 formula or one that’s similar to coax out the plant’s blooms. For overwintered hydrangeas, give them fertilizer in early spring and again in May. There’s no need to fertilize again during summer.

For Incrediball® Hydrangea arborescens, fertilize once a year, best done in late fall after leaf drop or in early spring before bud break. Liquid hydrangeas do not tolerate wet conditions and should be fertilized once in early spring with a rose fertilizer if desired.

In conclusion, Incrediball hydrangeas grow slowly and don’t require added fertilizer. Replacing the potting soil once a year should provide them with more nutrients.