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Agastache 'Blackadder'
hyssop (syn. Black Adder)
Hyssops are great for adding height to a border, with whorls of long-lasting, tiny flowers arranged like a...
The ultimate midsummer bee plant with soft, stubby blue bottle brushes tinged with black- purple -the antidote to sunny orange calendulas
Plant description
Eventual height & spread
Flowering period
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Plant features
Position
Full sun
Rate of growth
Average
Soil
Moderately fertile, moist, well-drained soil
Hardiness
Borderline hardy (will need protection in winter in colder areas)
How to care for Agastache Blackadder:
Please note:
GOES WELL WITH
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