Save Big On Plant Monitoring! Offer Ends Soon.
Back
Polemonium occidentale
Polemonium occidentale
Polemonium occidentale
Polemonium occidentale

Polemonium occidentale

TAXONOMY

FamilyPolemoniaceae
GenusPolemonium
Zone4

ABOUT

Polemonium occidentale, commonly known as Western Jacob's Ladder, is a perennial plant native to North America, particularly in temperate regions. It belongs to the family Polemoniaceae and is known for its attractive, ladder-like leaf arrangement and clusters of blue to violet flowers. The plant typically goes dormant in the winter months.

ALSO KNOWN AS

Western Jacob's Ladder
Polemonium caeruleum subsp. amygdalinum
Polemonium caeruleum subsp. occidentale
Polemonium caeruleum var. occidentale
Polemonium helleri
Polemonium intermedium
Polemonium occidentale subsp. amygdalinum
Polemonium occidentale var. intermedium

OVERVIEW

WaterWet
SoilLoamy
LightIndirect Bright (6 Hours)
Temperature18° C
Humidity60%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Western Jacob's Ladder thrives in temperate climates with moderate temperatures. It prefers bright, indirect light and should be kept in an environment with moderate humidity. Regular watering is essential to keep the soil evenly moist, but avoid waterlogging. The plant can be grown both indoors and outdoors.
Soil
Polemonium occidentale prefers well-draining loamy soil that retains moisture without becoming waterlogged. A soil mix that includes organic matter will help provide the necessary nutrients and drainage. Ensure the soil pH is slightly acidic to neutral.
Fertilizer
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant during the growing season, typically every 4-6 weeks, to support healthy growth and flowering.
Repotting
Repot Western Jacob's Ladder every 2-3 years or when the plant outgrows its container. Choose a slightly larger pot with good drainage. Gently remove the plant from its current pot, loosen the roots, and place it in the new pot with fresh soil.
Propagation
Propagate Polemonium occidentale through division or seed. Division is best done in early spring or fall. Carefully separate the plant into smaller sections, ensuring each section has roots, and replant them. Seeds can be sown in the spring after the last frost.
Pruning
Prune the plant to remove dead or damaged foliage and spent flowers. This encourages new growth and maintains the plant's shape. Pruning is best done in late winter or early spring before new growth begins.
Toxicity
Polemonium occidentale is not known to be toxic to pets or humans. However, it is always advisable to keep plants out of reach of pets and children to prevent any accidental ingestion.
REVOLUTIONIZE YOUR PLANT CARE
Make Every Plant Smart
Plant Monitor

Plant Monitor

STAYS IN YOUR PLANT

Accurately measures the core metrics of your plant – soil moisture, light, temperature and humidity - as well as compound metrics such as Vapor Pressure Deficit (VPD) and Growing Degree Days (GDD).

Shop Now
Mobile App

Mobile App

DOWNLOAD ON YOUR DEVICE

Evaluates your plants' data, current weather, seasonality and more to precisely notify you about your plants needs. The app also comes loaded with many extra features to ensure your plants flourish.

newsletter background

Join Our Growing Community

Join for 10% off your first purchase, exclusive offers, better plant care, and more