Answer: Your Buddleia altenifolia should do just fine in your zone. The B.alternifolia are all gracefully fountain-shaped. They flower in June. Generally these shrubs grow to 10-15 feet. They should be planted in good soil where they will get loads of sunshine. They can be pruned in the autumn. The pruning will keep them at a reasonable size.
You will definitely attract both birds and butterflies with this bush. That's why it's called the Butterfly Bush!
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