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Butterfly Bush and Lilac Care: Deadheading, Pruning, and Disease

Butterfly Bush (Buddleia)

Watering: Daily is too much. Water twice weekly during growing season; stop in fall.
Deadheading: Remove spent flowers to encourage rebloom. Cut dead buds now.
Pruning: Hard prune in spring (to 12–18 inches) for vigorous growth and more flowers.

Lilac (Syringa) Problem

White spots on trunks and dusty leaves suggest powdery mildew or another fungal issue. This requires expert diagnosis. Consult a plant disease specialist for targeted treatment.

Key Takeaway

Butterfly bushes are tough—correct watering and spring pruning fix most issues. Lilac diseases need professional ID.

Shrubs: Pruning Overgrown Plumeria: Artistic Shaping & Propagation; Butterfly Bush Stem Borers: Cut Infested Stems, Use Orthene; Pruning Butterfly Bush (Buddleia): Cut Hard in Fall; Reshaping Olive Stumps into Attractive, Functional Bushes; Why Hydrangeas Fail to Bloom: Common Pruning Mistakes; Planting Butterfly Bushes: Timing and Care; Butterfly Bush Not Leafing Out After Fall Pruning; Renovating Overgrown Foundation Shrubs: Species ID First; Propagating Lilacs: Sucker Division vs. Stem Cuttings; Cutting Lilacs for Indoor Bouquets: The Hammer Trick

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