When it comes to hydrangea flower heads, there are basically two things people look for:
- Color
- Size
'Incrediball' hydrangeas live up to their name, producing incredibly big, rounded flower heads. They can reach a size even larger than those on 'Annabelle.' The branches supporting those large flower heads are supposed to be stronger on 'Incrediball' hydrangeas, but I, personally didn't find them strong enough: Branch snapping occurred on mine during a heavy rain this summer.
That's the problem with focusing on the size of the flower head with hydrangeas: It's a double-edged sword. Sure, large flower heads look wonderful when the sun is shining. But they trap rain; and if enough water builds up in them, they flop over. 'Incrediball' hydrangeas were designed with an eye to fixing this problem. But as far as I can tell, the issue remains unresolved.
Read article: Incrediball Hydrangeas
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