honey suckle vines blooms wither

Cedar Rapids, IA

My scarlet honey suckle vines will produce lots of blooms but they never open up so the hummingbirds never feed on them. What causes this? The blooms just turn black and wither up without ever opening up.

Dublin, CA(Zone 9a)

Can you post some pictures and say a little more about the conditions they're growing in (how long have they been in the ground, how much sun/shade, how are you watering/fertilizing, etc)?

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