Zone 4 · Zinnia
Planting Zinnia in Zone 4
Zinnia elegans
✅ Zinnia thrives in zone 4 (hardy 3–10)
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
June – October
Peak bloom
August
Sun required
full sun
Mature height
24"
Spacing
9" apart
Type
annual
How to plant Zinnia in zone 4
Direct-sow after last frost. Pinch early for bushier plants.
Pair with these for continuous bloom
Zinnia peaks in August. These companions keep your bed in color before and after.
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