Zone 4 · Crocus
Planting Crocus in Zone 4
Crocus vernus
✅ Crocus 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
February – March
Peak bloom
March
Sun required
full sun, part sun
Mature height
6"
Spacing
3" apart
Type
bulb
How to plant Crocus in zone 4
Plant corms in fall 3 inches deep. First color of the year — plant in drifts of 50+.
Pair with these for continuous bloom
Crocus peaks in March. These companions keep your bed in color before and after.
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