Purple Gems not blooming
Last spring I bought 4 purple gem rhododendrons and I planted them in a raised perennial bed that gets mostly shade but a little sun. Last spring they all bloomed beautifully.
This year the rhodies look healthy....new growth....nice foliage. But none of them bloomed.
I live in Massachusetts (we used to be zone 5b but I think we are zone 6 now).
Any ideas as to the reason?