Prune for Improved Air Circulation
Thinning out congested branches in shrubs like butterfly bush (Buddleja davidii, native to Asia and potentially invasive in some regions—opt for non-invasive cultivars) opens the canopy to breeze and sunlight. I trim crossing stems and old wood in late May, which reduces mildew and encourages more flower-bearing shoots.
Better airflow keeps flowers fresher and deters fungal spores. And when your blooms stay airy and open, hummingbirds and butterflies find landing sites more easily—boosting pollination and visual drama!