how do i maintain my reblooming hydrangeas planted in full sun? - Knowledgebase Question

yeadon, Pe
Avatar for marciaevans0
Question by marciaevans0
June 30, 2010
I recently planted reblooming hydrangeas on the side of my house - they get morning to mid-afternoon sun. all 4 seem to be adjusting well - they're even growing! I've watered them deeply 1x per day, especially with the hot weather we've gotten in Phila this summer. Should I maintain this same watering schedule throughouth the entire summer?

Answer from NGA
June 30, 2010
Your watering schedule will depend on your soil and the weather. Hydrangeas do best in moist, well-drained soil, meaning they need regular soil moisture, but not so much that the soil is always saturated, since the roots need oxygen as well. Watering once a day seems like a lot unless you have very sandy soil. Water deeply when you do water, so you soak the entire depth of the rootball, then let the top few inches of soil dry out before watering well again. Spreading mulch over the root zone of the plants will help to conserves soil moisture. If it's very hot you'll need to water more than when the weather is cooler, but several good soakings a week should be plenty at most.

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