Zone 3 · Catmint
Planting Catmint in Zone 3
Nepeta × faassenii
✅ Catmint thrives in zone 3 (hardy 3–8)
Can I plant today?
✅ Safe to plant Catmint outside
Last frost has passed. Plant in spring. Shear back by a third after first bloom for a second flush. Drought tolerant.
Evaluated for June 13, 2026 ·
Zone's last frost
around May 15
Zone's first frost
around September 15
Bloom window
May – September
Peak bloom
June
Sun required
full sun, part sun
Mature height
18"
Spacing
18" apart
Type
perennial
How to plant Catmint in zone 3
Plant in spring. Shear back by a third after first bloom for a second flush. Drought tolerant.
Pair with these for continuous bloom
Catmint peaks in June. These companions keep your bed in color before and after.
Want a full bed designed for zone 3?
Sign up free. GimmeBlooms builds a bloom-succession layout withCatmint and 3–5 perfect companions.
Design my bed →