Pruning Blue Spirea (caryopteris) and Buddelia (Butterfly bush)
How hard and when should I prune back my Blue Spirea? It did so-so
this year.
Should I whack it right to the ground in spring?
The Butterfly Bush was a decided underperformer. Lanky describes it.
How should I prune it?
Zone 5, southern Wisconsin banana belt.
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