Polemonium reptans, Jacob's Ladder

Jacob's ladder
Polemonium reptans

Hardiness: Zones 3 to 8
Plant type: Herbaceous perennial
Height: 1- 1.5'
Spread: 1- 1.5'
Sun: Part shade to full sun
Water: Medium
Bloom time: April to June
Bloom color: Blue
Soil: Moist, organically rich soils, neutral (≈7), acid (<7pH).

Notes: Best in partially shaded areas of rock gardens, naturalized areas, woodland gardens or native plant gardens.

More information on this plant here.