Agastache Blackadder | Hyssop
£8.99
Hyssops are great for adding height to a border, with whorls of long-lasting, tiny flowers arranged like a bottlebrush, and pointed,...
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£8.99
In stock (delivery in 2-3 working days)
Standard £5.99
Plant description
Hyssops are great for adding height to a border, with whorls of long-lasting, tiny flowers arranged like a bottlebrush, and pointed, aromatic fresh green leaves that are attractive to butterflies. They are short-lived though, and may need replacing every few years, especially after a cold or wet winter. 'Blackadder' has smoky, violet flowers on long spires from July to October. Try it as part of a Mediterranean scheme or in a sunny, well-drained border among ornamental grasses.
Position
Full sun
Rate of growth
Average
Flowering period
July - October
Soil type
All soil types
Hardiness
Semi hardy
Eventual height & spread