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Buy Agastache 'Blue Boa' | Giant Hyssop | Sarah Raven
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Agastache 'Blue Boa'

This is one of those plants that grows on you year-on-year. Don't underestimate this new agastache.
1

1 x 9cm pot

3 x 9cm pots

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
60cm (24in)
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

This is one of those plants that grows on you year-on-year. The first year we grew it I was impressed by its MASSIVELY long-flowering season. The next, I noticed its beautiful seedheads, almost as good as the flowers themselves, standing on the plant all autumn. Last year I fell for it again for its bright richness of colour. Don’t underestimate this apparently background, new agastache.

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.