Aster x frikartii 'Monch':
Soft lavender blue flowers in late summer. Very early flowering and shorter than many asters at about 80cm. Easy and reliable.
Salvia uliginosa (Bog Sage):
Branched stems of clear blue flowers and lance-shaped leaves. Needs a sunny spot but with moist soil. Late flowering. To 2m.
Found 2 matches:
Colour: Blue
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Aspect: Sun
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Flowering: Late Summer
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Spread: Moderate
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Type: Hardy perennial
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