Zone 4 · Creeping Phlox
Planting Creeping Phlox in Zone 4
Phlox subulata
✅ Creeping Phlox thrives in zone 4 (hardy 3–9)
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
April – May
Peak bloom
April
Sun required
full sun
Mature height
6"
Spacing
15" apart
Type
perennial
How to plant Creeping Phlox in zone 4
Plant in spring on slopes or walls. Evergreen mat; spectacular spring carpet.
Pair with these for continuous bloom
Creeping Phlox peaks in April. These companions keep your bed in color before and after.
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