Jacob’s ladder (Polemonium caeruleum) pole-MONE-ee-um sir-EW-lee-um Genus:  Polemonium This North American native bears deep blue or occasionally white, bell-shaped blossoms in spring and possibly late summer if deadheaded. It grows from 1 to 3 feet tall. Use Jacob's ladder in a lightly shaded border, rock garden, woodland, or cottage garden. Care:  Grow in moist, but well-drained, soil in sun to partial shade. Some cultivars can grow in full shade. Propagation:  Sow seed in a cold frame in spring or fall. Divide in spring. Problems:  Powdery mildew.

Overview

Height 1 ft. to 3 ft. Spread 1 ft. to 3 ft. Growth Habit Clumps Growth Pace Moderate Grower Light Part Shade Only Moisture Medium Moisture Maintenance Low Characteristics Attracts Butterflies, Native, Self Seeds, Showy Flowers, Showy Foliage Bloom Time Early Summer, Summer Flower Color Blue, White Uses Beds and Borders, Ground Covers, Naturalizing Style Cottage Garden, Meadow Garden, Shade, Woodland Garden Seasonal Interest Spring Interest Type Perennials