Zone 6 · Jacob's Ladder
Planting Jacob's Ladder in Zone 6
Polemonium reptans
✅ Jacob's Ladder thrives in zone 6 (hardy 3–7)
Can I plant today?
✅ Safe to plant Jacob's Ladder outside
Last frost has passed. Plant in spring in rich, moist shade. Ladder-like foliage stays neat all season.
Evaluated for April 27, 2026 ·
Zone's last frost
around April 15
Zone's first frost
around October 15
Bloom window
April – May
Peak bloom
May
Sun required
part sun, shade
Mature height
18"
Spacing
15" apart
Type
perennial
How to plant Jacob's Ladder in zone 6
Plant in spring in rich, moist shade. Ladder-like foliage stays neat all season.
Pair with these for continuous bloom
Jacob's Ladder peaks in May. These companions keep your bed in color before and after.
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