Here are seven common reasons why you'll see hydrangeas not blooming. Once you figure out what's causing your plant not to flower, use the tips in this guide to fill your garden with plenty of ...
It’s not all hydrangeas, she says ... macrophylla blooms on what’s called old wood. After the plant is done flowering, it puts on buds that sit and wait all winter to bloom the next summer.
Panicle and arborescens hydrangeas bloom on new wood or the current season ... a trace of new growth coming up for a particular plant? Not all plants come out of dormancy at the same time.