Zone 6 · Butterfly Bush
Planting Butterfly Bush in Zone 6
Buddleja davidii
✅ Butterfly Bush thrives in zone 6 (hardy 5–9)
Can I plant today?
✅ Safe to plant Butterfly Bush outside
Last frost has passed. Plant in spring. Cut back hard each spring for more blooms. Choose sterile 'Lo & Behold' cultivars to avoid invasiveness.
Evaluated for April 27, 2026 ·
Zone's last frost
around April 15
Zone's first frost
around October 15
Bloom window
July – October
Peak bloom
August
Sun required
full sun
Mature height
72"
Spacing
60" apart
Type
perennial
How to plant Butterfly Bush in zone 6
Plant in spring. Cut back hard each spring for more blooms. Choose sterile 'Lo & Behold' cultivars to avoid invasiveness.
Pair with these for continuous bloom
Butterfly Bush peaks in August. These companions keep your bed in color before and after.
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