Jacob's Ladder
Polemonium caeruleum
Traits
Varieties We Bring In
Last received Jun 15, 2026.
We bring this in seasonally, so what is on the lot changes week to week. A received date shows when it last came in, not that it is here today.
Call (904) 471-0440 to confirm this plant and size before you make the trip.
About Jacob's Ladder
Jacob's ladder (Polemonium caeruleum) is a shade-loving perennial producing ladderlike compound foliage and clusters of blue-purple flowers in spring. In NE Florida's zone 9b, it is best treated as a cool-season annual due to its intolerance of summer heat and humidity. Starting at $19.95.
Plant details
- Bloom Season
- Spring
- Growth Rate
- Moderate
- Foliage
- Herbaceous
- Soil
- Loam, Rich, Moist, Well-drained
Care essentials
Grow in part shade to dappled shade, especially protecting from Florida's harsh afternoon sun. Excessive heat and sun causes foliage scorch and rapid summer decline in NE Florida's climate.
Keep soil evenly moist; do not allow soil to dry out. Jacob's ladder is intolerant of drought and will decline quickly in NE Florida's summer heat without consistent moisture.
Plant in rich, humus-amended, well-drained soil. In NE Florida, best treated as a cool-season annual or short-lived winter/spring perennial; summer heat and humidity will cause foliage to deteriorate and promote fungal disease.
Similar needs
Brazilian Plume Flower
Shares 4 of the same needs: shade, moderate water, loam, and pollinator-friendly.
Painted Tongue
Shares 4 of the same needs: shade, moderate water, loam, and pollinator-friendly.
Arrowhead Plant
Shares 3 of the same needs: shade, moderate water, and rich.
Panicle Hydrangea
Shares 3 of the same needs: shade, moderate water, and loam.
Paperbush
Shares 3 of the same needs: shade, loam, and pollinator-friendly.
Avens
Shares 3 of the same needs: moderate water, loam, and pollinator-friendly.
Common questions
Is Jacob's Ladder a good plant for St. Augustine?
Jacob's Ladder is a plant for Zone 9b coastal Florida gardens, reaching 18-24 in × 12-18 in.