Jacob's Ladder
Polemonium delicatum

Family: Polemoniaceae (po-le-moh-nee-AY-see-ee) (Info)
Genus: Polemonium (po-le-MOH-nee-um) (Info)
Species: delicatum (del-ih-KAY-tum) (Info)

Category:

Alpines and Rock Gardens

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us

Height:

under 6 in. (15 cm)

Spacing:

3-6 in. (7-15 cm)

Hardiness:

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Medium Blue

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Foliage:

Unknown - Tell us

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Non-patented

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Sitka, Alaska

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Oct 12, 2007, macybee from Deer Park, TX (Zone 9a) wrote:

Polemonium - Jacob's Ladder
This genus of around 25 species of annuals and perennials is distributed over the Arctic and temperate regions of the northern hemisphere. They form clumps of soft, bright green, ferny, pinnate leaves from which emerge upright stems topped with heads of short, tubular, bell- or funnel-shaped flowers usually in white or shades of blue or pink. Completely dormant in winter, they develop quickly in spring and are in flower by early summer.
Cultivation: Most species are very frost hardy and easily cultivated in moist, well-drained soil in sun or part-shade. Propagate annuals from seed; perennials from seed or cuttings of young shoots or by division. Some species self-sow freely.
P delicatum - Skunkleaf Jacob's Ladder
This native of the Mi... read more