greetings, tried to search, hoping to find some advise without bothering the experts.....but........here i am......

silly me, not saving the nursery tags have some hib's in the back yard in partial sun, doing great.....rescued two from last year after the christmas blizzard (note my zone, hehe) and they are just now showing signs of blooms, however, i have noticed my buds are falling off unopened.....or partially opened, which is how i discovered they look different from my established ones in the back yard...?? i noticed they look just like the one that is shown on the main page of this forum......but the ones in the back yard look like tropicial hib's...so my ? is this......i think i know the ones in the back yard are tropical, so which kind are in the picture? because that's the kind i'm having the bud drop problem with......

they have fantastic green growth, no bugs, that i can see, and i feed with fish emulsion....

thanks in advance for your help.....

have a great day

tesa