Polemonium caeruleum, known as Jacob’s Ladder, is a graceful perennial with clusters of soft blue, bell-shaped flowers that rise above finely divided, fern-like foliage. Flowering from late spring into early summer, it adds freshness and texture to borders, particularly in lightly shaded areas.
It thrives in moist, well-drained soil and prefers sun or partial shade. For a natural, layered look, plant it with ferns for contrast and Hakonechloa macra for soft movement and golden-green tones that complement its blue blooms.
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Sunlight: Full sun or partial shade
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Soil: Moist, well-drained, fertile soil
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Position: Ideal for borders, woodland edges, or cottage gardens
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Hardiness: Fully hardy perennial
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Height & Spread: Around 60–80cm tall and 40cm spread
A graceful, easy perennial that brings soft colour and texture to shaded or partially sunny borders.
