I tried Google, but couldn't find the answer.

I'm in zone 5 - when does Burning Bush bloom? I planted them back in late
March, have cared properly for them, etc, and they are still just twigs with
reddish/greenish buds that don't seem to want to open. They have looked like
this for a month - they aren't dead, but they certainly aren't full of life
either.

I never planted Burning Bush before, so this very well could be normal - I'm
wondering if anyone in zone 5 with Burning Bush can enlighten me. I see
everything else around me blooming except my Burning Bushes
--
JWB