Zone 4 · Culver's Root
Planting Culver's Root in Zone 4
Veronicastrum virginicum
✅ Culver's Root thrives in zone 4 (hardy 3–8)
Can I plant today?
⏳ Too early to direct-sow
Last frost is in 4 weeks. Wait until soil warms.
Evaluated for April 27, 2026 ·
Zone's last frost
around May 15
Zone's first frost
around September 15
Bloom window
July – August
Peak bloom
July
Sun required
full sun, part sun
Mature height
60"
Spacing
24" apart
Type
perennial
How to plant Culver's Root in zone 4
Plant in spring in moist soil. Candelabra of tall spires; architectural vertical in any border.
Pair with these for continuous bloom
Culver's Root peaks in July. These companions keep your bed in color before and after.
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