Overview
Polemonium caeruleum 'Rose Queen' is a perennial in the genus Polemonium, part of the Polemoniaceae family. It typically grows around 0.4 m tall. Polemonium caeruleum 'Rose Queen' grows best in full sun, and tolerates sandy and loamy soils.
About
Polemonium caeruleum 'Rose Queen' is a perennial Jacob's Ladder grown for its compact, herbaceous clumps and seasonal flowering. It reaches about 0.4 m tall and flowers in the UK from May to July. Best placed in full sun where soil is sandy or loamy and remains moist but well-drained. Give plants a sheltered spot with reliable moisture through the growing season.
Wikipedia contributors, CC BY-SA 4.0 — Polemonium caeruleum
About the genus
Polemonium, commonly called Jacob's ladders or Jacob's-ladders, is a genus of between 25 and 40 species of flowering plants in the family Polemoniaceae, native to cool temperate to arctic regions of the Northern Hemisphere. One species, Polemonium micranthum, also occurs in the southern Andes in South America. Many of the species grow at high altitudes, in mountainous areas.
Wikipedia contributors, "Polemonium", CC BY-SA 4.0 — Polemonium
In the garden
Polemonium caeruleum 'Rose Queen' belongs to the Polemoniaceae and forms a short-lived perennial clump that produces its main display in late spring and early summer. The cultivar's size — around 0.4 m — makes it suitable where a lower-growing, flowering perennial is required rather than taller border specimens. Plant in a sunny position; exposed morning and afternoon sun suits it where soil drains freely. Soils that are sandy or loamy and that retain some moisture without waterlogging are ideal. Keep the rootzone evenly moist during the active growth period, especially in dry spells, but avoid siting in heavy, waterlogged ground where drainage is poor. Use individual plants in the front of mixed borders or grouped in a small island to get the most from their spring–early-summer bloom. Allow soil to dry slightly at the surface between waterings rather than remaining saturated. Expect compact clumps to reach roughly 0.4 m and to flower from May to July, making timing straightforward when planning a summer sequence of flowering perennials.
Growing conditions
Best soil and position for Polemonium
- Sunlight
- Full sun
- Soil type
- Sandy, Loamy
- Soil moisture
- Moist but well-drained
Plant details
Polemonium caeruleum 'Rose Queen' size, habit and characteristics
- Plant type
- Perennial
- Height
- 0.4 m
Frequently asked questions
Where is the best place to plant Polemonium caeruleum 'Rose Queen'?
Polemonium caeruleum 'Rose Queen' prefers full sun.
What soil does Polemonium caeruleum 'Rose Queen' need?
Polemonium caeruleum 'Rose Queen' grows best in sandy and loamy soil. Aim for soil that stays moist but well-drained.
How big does Polemonium caeruleum 'Rose Queen' grow?
Polemonium caeruleum 'Rose Queen' reaches a height of 0.4 m.
