I have an assortment of really gorgeous mophead hydrangeas. Last year I fertilized minimally [carelessly?!] and they all had quite a lot of flowers. I cut a fair amount of them for indoor display.
This year the plants all grew quite vigorously [some doubling in size], but there are so few flowers. Indeed 2 of the 5 plants have NO flowers at all! I didn’t fertilize this year because I was lazy, and here in NYC it rained and rained and rained and rained, so I wasn’t sure when to.
I know there’s nothing I can do for this year, but for next year what should I do? Was it cutting the flowers after they bloomed that devastated the blooming this year? Or not fertilizing? Or just the bad, bad weather NYC had?