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Picture of Butterfly Bush

Buddleia Cultivars Such As 'Black Knight' Offer Dark Flowers

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Picture of a butterfly bush with "black" flowers....
Picture of butterfly bush.

Flowers bloom in early summer.

David Beaulieu
Some cultivars of butterfly bush, such as Black Night (Buddleia davidii 'Black Knight') can have blooms that are a very dark purple -- almost black, at a quick glance.

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