Agastache 'Black Adder' - GIANT HYSSOP 'BLACK ADDER'
Even though this is a hybrid of two species from two different continents, 'Black Adder' will absolutely be one of your pollinators’ favorites.
Compact, rounded in stature, covered with purple/blue flowers during the long blooming period. An easy-to-grow perennial that has no major issues with disease or insects and thrives in full sun and average to dry conditions with very good drainage (especially during winter). Perfect for borders, butterfly/pollinator gardens, rock gardens, and containers.
Great companions could include Achillea, Baptisia, Coreopsis, Echinacea, Eryngium, Liatris, Monarda, Nepeta, Ratibida, and many more.
We compared Agastache 'Black Adder' and the cultivar Agastache 'Blue Fortune' with their native parent Agastache foeniculum, and all three were highly attractive to pollinators, without any major differences. The pure native A. foeniculum also attracted tiny insects, but only when the blooms were in certain stages of development.
Blooming Time: June to September
Size: up to 3' tall and 1.5-2' wide
USDA Zones: 6 to 9
Culture: full sun, half sun, half shade, average soil with some drainage. This plant will be short-lived in heavy clay or waterlogged soils
Moisture Needs: average, some tolerance to shorter-term drought
Origin: This perennial is of garden origin, introduced by the famous Dutch breeder Coen Jansen who crossed the US-native Agastache foeniculum with the Asian Agastache rugosa
Deer/Rabbit Resistant: deer usually avoid this plant / rabbits may chew the young shoots
Attracts Butterflies or Pollinators: highly attractive for native bees, honey bees, flies, wasps and butterflies
Attracts Hummingbirds: yes
Pot Size: square 3.5" x 4" deep perennial pot (1.22 pt/580 ml)
Agastache 'Black Adder' - GIANT HYSSOP 'BLACK ADDER'
Even though this is a hybrid of two species from two different continents, 'Black Adder' will absolutely be one of your pollinators’ favorites.
Compact, rounded in stature, covered with purple/blue flowers during the long blooming period. An easy-to-grow perennial that has no major issues with disease or insects and thrives in full sun and average to dry conditions with very good drainage (especially during winter). Perfect for borders, butterfly/pollinator gardens, rock gardens, and containers.
Great companions could include Achillea, Baptisia, Coreopsis, Echinacea, Eryngium, Liatris, Monarda, Nepeta, Ratibida, and many more.
We compared Agastache 'Black Adder' and the cultivar Agastache 'Blue Fortune' with their native parent Agastache foeniculum, and all three were highly attractive to pollinators, without any major differences. The pure native A. foeniculum also attracted tiny insects, but only when the blooms were in certain stages of development.
Blooming Time: June to September
Size: up to 3' tall and 1.5-2' wide
USDA Zones: 6 to 9
Culture: full sun, half sun, half shade, average soil with some drainage. This plant will be short-lived in heavy clay or waterlogged soils
Moisture Needs: average, some tolerance to shorter-term drought
Origin: This perennial is of garden origin, introduced by the famous Dutch breeder Coen Jansen who crossed the US-native Agastache foeniculum with the Asian Agastache rugosa
Deer/Rabbit Resistant: deer usually avoid this plant / rabbits may chew the young shoots
Attracts Butterflies or Pollinators: highly attractive for native bees, honey bees, flies, wasps and butterflies
Attracts Hummingbirds: yes
Pot Size: square 3.5" x 4" deep perennial pot (1.22 pt/580 ml)