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£7.99  Agastache 'Blackadder' - 3Ltr    


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Agastache 'Blackadder' - 3Ltr
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Plant Details

Soil Type: Sharply-drained
Soil PH: Alkaline Acid
Scented?: Aromatic-foliage
Seasonal Interest: Summer
Evergreen?: No
Hardiness  Fully hardy - requires no frost protection.
(giant hyssop 'Blackadder')
Family Lamiaceae
Garden origin

A clump forming herbaceous perennial with aromatic foliage. Long smoky blue black flower spikes produced over a long period in summer attract bees and butterflies.
Grow in well drained soil in full sun.

Eventual mature plant size :
Height 1m

Spread 50cm
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