Polemoniaceae
Leafy jacob's-ladder
Polemonium foliosissimum
Also known as Spreading jacob's-ladder, Leafy polemonium, Blue jacob's-ladder, Polemonium foliosissimum subsp. verum
Flowering Plants · Native Plants · Jacob'S-Ladder · Wildflower · Part Shade · Perennial · Woodland · Native · Blue Flowers · Pollinator · Rocky Mountain · Cottage Garden
Leafy Jacob's-ladder thrives in partial shade with consistently moist, well-drained soil and appreciates a cool root zone. It is well suited to woodland garden settings in the Rocky Mountain region and benefits from a layer of mulch to retain moisture. Deadhead spent blooms to encourage a second flush of flowers and divide clumps every 3-4 years to maintain vigor.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water deeply until soil is evenly moist, allowing the top inch to dry between waterings · Every 7-10 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 6.5–8
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed, Division, Cutting
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 4 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Arizona, Colorado, Idaho, Nevada, New Mexico, Utah, Wyoming
- Attracts
- Bees, Butterflies, Hummingbirds
Sources: trefle, usda
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Polemonium foliosissimum var. foliosissimum
Polemonium foliosissimum var. foliosissimum
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Polemonium foliosissimum var. flavum
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