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 Plant list: Blue plants
Blue is a cool colour that is calming on the eye and makes objects seem to disappear into the distance, so use blues at the end of the garden if you want to make it look bigger.
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| Latin name: | | Linum perenne |
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| Common name: | | Flax |
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| Type of plant: | | Perennial |
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| Hardiness: | | Hardy |
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| Flower colour: | | Clear blue |
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| Leaf colour: | | Mid-green |
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| Height and spread: | | 30cm x 15cm (1ft x 6in) |
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| Description: | |
A delicate, upright perennial with stems covered in fine leaves, on top of which cup-shaped flowers appear all summer. Good plant for the rock garden. Prefers full sun and will grow well in humus rich or peaty soil
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| Latin name: | | Festuca glauca |
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| Common name: | | Blue fescue |
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| Type of plant: | | Perennial |
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| Hardiness: | | Hardy |
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| Flower colour: | | steel blue |
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| Leaf colour: | | Grey blue |
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| Height and spread: | | 15cm to 30cm x 20cm to 25cm (6in to 1ft x 8in to 10in) |
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| Description: | |
Tufty, evergreen ornamental grass with narrow leaves that form a domed mound. In summer it sends up stiff stems with violet tinged flowering plumes. It does best in sun.
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| Latin name: | | Hosta 'Halcyon' |
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| Common name: | | Plantain lily |
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| Type of plant: | | Perennial |
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| Hardiness: | | Hardy |
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| Flower colour: | | Violet mauve |
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| Leaf colour: | | Blue-grey |
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| Height and spread: | | 30cm x 1m (1ft to 3ft) |
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| Description: | |
A shade tolerant perennial that makes fantastic ground cover – so long as you keep the slugs and snails under control. Has heart-shaped tapering leaves above which flowering spikes arise, bearing a cluster of trumpet-shaped flowers.
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| Latin name: | | Geranium ‘Johnson’s Blue’ |
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| Common name: | | Cranesbill |
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| Type of plant: | | Perennial |
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| Hardiness: | | Hardy |
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| Flower colour: | | Lavender blue |
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| Leaf colour: | | Fresh green |
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| Height and spread: | | 30cm x 60cm (1ft x 2ft) |
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| Description: | |
Vigorous clump forming perennial that has attractive foliage and a continual show of flowers throughout the summer. It thrives in full sun and on a well drained soil. One of the finest geraniums.
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| Latin name: | | Agapanthus Headborne Hybrids |
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| Common name: | | African Lily |
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| Type of plant: | | Perennial |
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| Hardiness: | | Frost hardy |
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| Flower colour: | | Deep blue |
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| Leaf colour: | | Dark green |
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| Height and spread: | | 1m x 50cm (3ft x 2ft) |
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| Description: | |
Clump forming, evergreen perennial with strap-shaped, broad, leaves. The large, dense globe flowers are born carried above the leaves on strong stems in late summer. The flowers fade to purple with age. Prefers full sun, a well drained soil, and is a good plant for containers.
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