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Buy Agastache 'Black Adder' Plants | Sarah Raven

Agastache 'Black Adder'

The whole agastache, or hyssop, family are massively on the up in garden fashion and rightly so.
1

1 x 9cm pot

3 x 9cm pots

1 x 9cm pot (200834-1)

3 x 9cm pots (200834-3)

Delivery:

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Direct Sow/ Plant Out
Flowers/ Harvest

Details:

Type
Perennial
Position
Border (Middle)
Soil
Broad Tolerance
Flowers
July - October
Height
90cm (36in)
Common name
Mexican Giant Hyssop
Moisture
Well-drained
Aspect
Full Sun
Spread
45cm (18in)
Cultivation
Plant in a sunny, well drained position to perform well in the border. To aid quick establishment, sprinkle mycorrhizal fungi (Rootgrow) into the base of the planting hole. Displays are much more effective planted in groups of 3.

Description

The whole agastache, or hyssop family are massively on the up in garden fashion and rightly so. They flower for months, are highly aromatic, have delicious edible flowers and with this variety, as it goes over, cut it right back for beautiful fresh domes of foliage into winter.

Care Tips

Agastache prefers sunny free-draining soil . They do not require extra feeding - this will only encourage leggy growth. The plants will be stronger and more floriferous if you cut back flower stalks as flowers fade.