Zone 3 · Ninebark
Planting Ninebark in Zone 3
Physocarpus opulifolius
✅ Ninebark thrives in zone 3 (hardy 2–8)
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
May – June
Peak bloom
June
Sun required
full sun, part sun
Mature height
72"
Spacing
60" apart
Type
perennial
How to plant Ninebark in zone 3
Plant in spring or fall. Exfoliating bark and purple-leaved cultivars add structure all year.
Pair with these for continuous bloom
Ninebark peaks in June. These companions keep your bed in color before and after.
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