Polemonium caeruleum
Jekkapedia
Polemonium caeruleum , Jacob’s Ladder
Family: Polemoniaceae
Genus: Polemonium
Clusters of small cup shaped blue/white flowers in summer. Pinnately divided mid green leaves. Traditional medicinal herb.
Characteristics:
• Hardiness: H7 (-20 and below)
• Type: Hardy Perennial
• Height: up to 90cm
• Spread: 45cm%
Jacob’s Ladder is available to buy online as herb seeds.
Details
• Aspect: Full Sun, Partial Shade
• Soil type: Sand, Clay, Loam, Free Draining
• pH: Universal pH
• Habit: Bushy
• Flowering colour: Blue, White
• Flowering time: Summer
• Uses: Medicinal (Read Jekka’s Guide To Medicinal Herbs for more information)
• Attracts pollinators: No
• Container suitability: No
• UK native: Yes
• Caution: N/A
Growing
• Grown from seed:
• Indoor Sowing: In early spring, into prepared plug trays or pots. Sow thinly, cover the seeds with a thin layer of compost.
• Outdoor Sowing: In late spring, in a fertile well draining soil. Thin seedlings to 30cm apart.
• Propagation: N/A
• Maintenance: (See Jekka’s Blogs on Early Spring, Late Spring, Summer and Autumn maintenance)
• Harvest: N/A
Available as
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