Zone 6 · Ninebark
Planting Ninebark in Zone 6
Physocarpus opulifolius
✅ Ninebark thrives in zone 6 (hardy 2–8)
Can I plant today?
✅ Safe to plant Ninebark outside
Last frost has passed. Plant in spring or fall. Exfoliating bark and purple-leaved cultivars add structure all year.
Evaluated for April 27, 2026 ·
Zone's last frost
around April 15
Zone's first frost
around October 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 6
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.
Want a full bed designed for zone 6?
Sign up free. GimmeBlooms builds a bloom-succession layout withNinebark and 3–5 perfect companions.
Design my bed →