Bring the Outdoors Home

Jacob’s Ladder | Plant Profile

Jacob’s Ladder (Polemonium caeruleum) are upright, clump forming perennials. The foliage consists of ovate leaves that grow along stems. The leaves grow symmetrically along the stem and can resemble a ladder, hence the name. The deep blue flowers are complimented by yellow flowers and stamens. The appearance of yellow dots make these small flowers highly ornamental, despite their small size.

Jacob’s Ladder prefers average fertility, medium moisture, well drained soils in part shade to full shade.

Jacob’s Ladder are show additions to shady areas in need of some color. Both the foliage and blooms are ornamental, making these perennials beautiful options for landscaping near homes and structures.



Jacob's Ladder Characteristics

Jacob's Ladder showy perennials that have good tolerance for heavy shade and cool climates. The soils should not be allowed to dry out. To keep the appearance of the plant looking tidy, cut the flower stalks back to the foliage after the blooming season. If the flower stems are cut back, reblooms are possible. Propagation occurs by self-seeding which can happen easily in optimum conditions.

There are few serious disease or insect issues that threaten the health of Jacob's Ladder. Hot and humid climates may bring leaf spot, powdery mildew, and leaf scorch. Dry soils will result in the tips of the leaves turning brown. Foliage decline is possible in the height of summer.

USDA Climate Zone
Zones 4 - 8
1.50 - 2.00'
1.50 - 2.00'
Bloom Time
April - May
Part Shade - Full Shade
Deer Resistant?