Perennial flower
Jacob's Ladder plant profile
Polemonium reptans
A perennial flower for partial sun.
Last updated .
When to plant
When to plant Jacob's Ladder
Jacob's ladder is a spring-blooming native perennial (NC State lists bloom in spring into summer) with loose clusters of light blue flowers over fern-like foliage. Plant or divide in spring or fall in moist, shaded soil.
The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.
Open Jacob's Ladder in my garden calendarShows the source-backed planting season, not frost-adjusted dates.
Growing conditions
- Sun
- Partial sun
- Lifecycle
- Perennial
- Hardiness
- Zones 3a to 8bFind my hardiness zone
Next steps
Continue with Jacob's Ladder
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Polemonium reptans (Greek Valerian, Jacob's Ladder)
North Carolina Extension Gardener Plant Toolbox (NC State Extension). Supports general reference. Checked 2026-06-18.