Alphabetical Plant Listing

Polemonium caeruleum (Jacob's Ladder)

Jacob's Ladder, American Great Valerian, Charity, Great Valerian, Ladder to Heaven, Make-Bate


Polemonium caeruleum (Jacob's Ladder) is an erect perennial prized for its loose sprays of cup-shaped, deep blue flowers, 1 in. across (2.5 cm), adorned with prominent yellow stamens in mid to late spring. Borne atop stiff leafy stems, they rise well above the foliage mound of finely divided, fern-like, bright green leaves. The leaves bear up to 20 leaflets that are supposed to represent the ladder of which Jacob dreamed and the angels climbed. Excellent for borders, rock gardens, or in woodland settings.

  • Grows up to 18-24 in. tall and wide (45-60 cm).
  • Thrives in average, medium, well-drained soils in sun or part shade. Prefers fertile, moist soils. Do not let the soil dry out. Best with protection from hot afternoon sun, particularly in warm summer areas. Intolerant of high heat and humidity.
  • A lovely plant for beds and borders, cottage gardens, coastal gardens, city gardens and containers.
  • Generally pest free. Keep an eye out for powdery mildews. Deer resistant.
  • Deadhead flowered stems so as to prevent self-seeding. Plants may be cut back to basal foliage after bloom to tidy the planting and to promote a potential rebloom in late summer.
  • Propagate by seed sown in containers, in a cold frame in autumn or spring, or divide in spring.
  • Native to northern Asia, Europe.

Not sure which Polemonium - Jacob's Ladders to pick?
Compare All Polemonium - Jacob's Ladders

Buy Polemonium caeruleum (Jacob's Ladder)

Requirements

Hardiness 4 – 9
Heat Zones 1 – 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17
Plant Type Perennials
Plant Family Polemonium - Jacob's Ladders
Exposure Full Sun, Partial Sun
Season of Interest Spring (Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" – 24" (45cm – 60cm)
Water Needs Average
Maintenance Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United Kingdom
Tolerance Deer
Garden Uses Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Coastal Garden, Informal and Cottage, Prairie and Meadow

Buy Plants


Flower_Garden, Olga Otto, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 9
Heat Zones 1 – 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17
Plant Type Perennials
Plant Family Polemonium - Jacob's Ladders
Exposure Full Sun, Partial Sun
Season of Interest Spring (Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" – 24" (45cm – 60cm)
Water Needs Average
Maintenance Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United Kingdom
Tolerance Deer
Garden Uses Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Coastal Garden, Informal and Cottage, Prairie and Meadow

Plant Calculator

How many Polemonium caeruleum (Jacob's Ladder) do I need for my garden?

%
ft
ft

Your Shopping List

Plant Quantity
Polemonium caeruleum (Jacob's Ladder)

Find your Hardiness Zone

Find your Climate Zone

Find your Heat Zone

Join Gardenia.net

Create a membership account to save your garden designs and to view them on any device.

Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

Join now and start creating your dream garden!

Create a New Collection

Optional. For your reference.


Move Selected Plants to a Different Collection


Delete Collection

This field is required.