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Polemonium caeruleum
Polemonium caeruleum
Polemonium caeruleum
Polemonium caeruleum

Polemonium caeruleum

TAXONOMY

FamilyPolemoniaceae
GenusPolemonium
Zone4

ABOUT

Polemonium caeruleum, commonly known as Jacob's Ladder, is a perennial plant native to temperate regions of Europe and Asia. It is known for its attractive blue or violet flowers and ladder-like leaf arrangement. The plant thrives in temperate climates and has a dormancy period during the winter months.

ALSO KNOWN AS

Jacob's Ladder
Polemonium album
Polemonium caeruleum subsp. caeruleum
Polemonium caeruleum var. caeruleum
Polemonium caeruleum var. vulgare lusus laxiflorum
Polemonium dissectum
Polemonium frolovianum
Polemonium gracile
Polemonium lacteum
Polemonium lanatum
Polemonium sibiricum
Polemonium vulgare

OVERVIEW

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

DETAILS

Care Instructions
Jacob's Ladder prefers moderate temperatures and indirect bright light. It thrives in environments with moderate humidity and should be watered regularly to keep the soil evenly moist. Avoid letting the soil dry out completely.
Soil
This plant prefers well-draining loamy soil with a slightly acidic to neutral pH. Ensure the soil remains moist but not waterlogged to prevent root rot.
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 promote healthy growth and flowering.
Repotting
Repot Jacob's Ladder every 2-3 years or when it outgrows its current pot. Choose a slightly larger pot with good drainage, and refresh the soil to provide new nutrients.
Propagation
Propagate by division in early spring or by seed. For division, carefully separate the plant into smaller sections, ensuring each section has roots attached. For seeds, sow them in a well-draining seed mix and keep them moist until germination.
Pruning
Prune the plant after flowering to remove spent blooms and encourage new growth. Cut back any dead or damaged stems to maintain the plant's shape and health.
Toxicity
Jacob's Ladder is not known to be toxic to pets or humans. However, it is always best to keep plants out of reach of pets and children to avoid any accidental ingestion.
Additional
Jacob's Ladder can be grown both indoors and outdoors. When grown indoors, ensure it receives adequate light and humidity. Outdoors, it can be planted in garden beds or containers, making it a versatile addition to any garden.
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