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Agastache rugosa ‘Little Adder’ (Anise Hyssop)

Hyssop 'Little Adder', Anise Hyssop 'Little Adder', Hummingbird Mint 'Little Adder'

Agastache rugosa 'Little Adder', Hyssop 'Little Adder', Anise Hyssop 'Little Adder', Hummingbird Mint 'Little Adder', Long blooming perennials, Blue flowers, Bue hyssops, Blue agastache
Agastache rugosa 'Little Adder', Hyssop 'Little Adder', Anise Hyssop 'Little Adder', Hummingbird Mint 'Little Adder', Long blooming perennials, Blue flowers, Bue hyssops, Blue agastache

Compact and very floriferous, Agastache rugosa ‘Little Adder’ (Anise Hyssop) is a short, well-branched perennial with a remarkably long floral display, extending from late spring to fall. Masses of tubular, two-lipped lavender-blue flowers, held in showy spikes, are borne atop a bushy foliage clump of licorice-scented leaves. While ‘Little Adder’ is half the height of the popular ‘Black Adder’ or ‘Blue Fortune’ Agastache cultivars, it is reported to bloom three times more. This dwarf Agastache is perfect to add color and a lovely spiky texture to beds, borders, rock gardens, or containers.

  • Grows up to 15-18 in. tall (37-45 cm) and 18-22 in. wide (45-55 cm).
  • Easily grown in full sun, in average, dry to medium moisture, well-drained soils. Dislikes damp conditions and needs excellent drainage. Although a drought-tolerant plant, it might need watering in extreme dry weather spells.
  • Provides a bold visual impact in beds and borders, cottage gardens, city gardens, butterfly gardens, or patio containers over a very long season. Ideal for naturalistic planting schemes. Great as cut flowers too!
  • Ideal to add color to the late-season garden when many other plants are fading.
  • Creates a stunning effect when mixed with other perennials or planted en masse.
  • Attracts streams of hummingbirds, butterflies, and other beneficial pollinators.
  • Generally disease and pest-free (might occasionally be subject to powdery mildew) and resistant to deer and rabbits.
  • While a sturdy plant, this Agastache may require staking if planted in rich, moist soils or in exposed locations.
  • Deadhead spent flowers to promote additional bloom.
  • Propagate by seed or by division in spring.
  • Agastache rugosa is native to China, Vietnam, Laos, Korea, and Japan.

Requirements

Hardiness 5 - 9
Heat Zones 5 - 12
Climate Zones 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Lamiaceae
Genus Agastache
Common names Hyssop
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early, Mid, Late)
Fall
Height 1' - 2'
(30cm - 60cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 20" - 24"
(50cm - 60cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Drought, Deer, Rabbit
Attracts Bees, Butterflies, Hummingbirds
Garden Uses Beds And Borders, Patio And Containers
Garden Styles Informal and Cottage, City and Courtyard
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Alternative Plants to Consider

Agastache cana (Texas Hummingbird Mint)
Agastache ‘Raspberry Summer’ (Hummingbird Mint)
Agastache ‘Summer Fiesta’ (Hummingbird Mint)
Agastache ‘Summer Glow’ (Hummingbird Mint)
Agastache ‘Kudos Red’ (Hummingbird Mint)
Agastache POQUITO Butter Yellow (Dwarf Hummingbird Mint)

Recommended Companion Plants

Helenium (Sneezeweed)
Anthemis tinctoria (Golden Marguerite)
Echinacea (Coneflower)
Achillea (Yarrow)
Echinops (Globe Thistle)
Persicaria amplexicaulis (Mountain Fleece)

Find In One of Our Guides or Gardens

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How to Cultivate a Thriving Bee-Friendly Garden
Hummingbird
Wonderful Plants That Repel Insects
Agastache (Hyssop)
Best Flowers to Attract Hummingbirds
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 5 - 9
Heat Zones 5 - 12
Climate Zones 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Lamiaceae
Genus Agastache
Common names Hyssop
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early, Mid, Late)
Fall
Height 1' - 2'
(30cm - 60cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 20" - 24"
(50cm - 60cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Drought, Deer, Rabbit
Attracts Bees, Butterflies, Hummingbirds
Garden Uses Beds And Borders, Patio And Containers
Garden Styles Informal and Cottage, City and Courtyard
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Agastache (Hyssop)
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Agastache (Hyssop)
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