Polemonium, Creeping Jacob's Ladder, Greek Valerian 'Blue Pearl'

Polemoniumreptans

Family
Polemoniaceae (po-le-moh-nee-AY-see-ee)
Genus
Polemonium (po-le-MOH-nee-um)
Species
reptans (REP-tanz)
Synonym
Sun Exposure
Light Shade
Foliage
Grown for foliage
Deciduous
Height
12-18 in. (30-45 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
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)
Bloom Color
Blue-Violet
Bloom Time
Mid Spring
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Propagation Methods
By dividing the rootball
From seed; direct sow outdoors in fall
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Tuscumbia, Alabama

Des Moines, Iowa

Hebron, Kentucky

Pinconning, Michigan

Bridgewater, New Jersey

Port Washington, New York

Grand Forks, North Dakota

Williamsburg, Ohio

West Chester, Pennsylvania

Austin, Texas

Saint Albans, Vermont

Leesburg, Virginia

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Gardener's Notes:

2
positives
1
neutral
0
negative
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B
Rochester, MN | August 2011 | positive

no problems so far, healthy in well drained soil and no special overwintering was provided (year 1). Has not required watering outside o...Read More

L
Bridgewater, NJ | May 2008 | positive

Wonderful ferny foliage all year, and a great companion plant for tulips. The delicate, abundant flowers are a medium blue-violet. They h...Read More

B
Lakemont, GA (Zone 8a) | March 2007 | neutral

POLEMONIUM Reptans 'Blue Pearl' - Short 12" - Plant 12" apart. A great improvement over the old 'Jacob's Ladder'. It is a long lived pla...Read More

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