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Why we like this plant
'Blue Spire' is ideal for adding height, haze and colour to hot, sunny planting schemes. Its silver foliage and blue flowers pair beautifully with grasses, lavender and late-season perennials.
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About this plant
A graceful, aromatic plant with silvery stems and clouds of lavender-blue flowers, bringing a soft Mediterranean feel to sunny borders.
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Key features
- Airy lavender-blue flowers in late summer
- Silvery grey, aromatic foliage
- Excellent for dry, sunny borders
- Attractive to bees and pollinators
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Eventual height and
spreadHeight: 90–120cm | Spread: 60–90cm
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Growth
habitUpright, airy sub-shrub
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Moisture
Dry to moist but well-drained
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Position in
the GardenSunny border
Planting guide
Plant in spring or early autumn in a sunny, sheltered spot with well-drained soil. Avoid heavy, wet ground and water regularly until established.
Care tips
Grow in full sun and well-drained soil. Prune hard in spring to encourage strong fresh shoots and plenty of flowers.
Winter care
Leave stems in place over winter to protect the crown, then cut back hard in spring when new growth appears.




