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Agastache ‘Purple Haze'
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  • Agastache ‘Purple Haze'
  • Agastache ‘Purple Haze'
  • Agastache ‘Purple Haze'
Agastache ‘Purple Haze'

Agastache ‘Purple Haze'

Anise Hyssop
AGASTACHE (Lamiaceae) hyssop

Agastache are upright, aromatic perennials grown for their narrow flower spikes and long summer flowering. Foliage is textured and scented, with notes that vary from mint to anise depending on species. Plants prefer full sun and freely draining soil, where warmth and lean conditions encourage sturdy stems and dense growth. Many forms are drought tolerant once established, though those of cooler origin accept a little more moisture. Flowers are highly attractive to bees, butterflies, and other generalist pollinators.

Clumps can be lifted and divided in spring to maintain vigour. Removing spent spikes can extend the flowering season, though old stems may also be left standing for winter texture. Agastache work well in mixed borders, meadow-style plantings, and gravel gardens where a light vertical structure and reliable mid-season colour are needed.

A broadly branching hyssop with long, tapered spikes that run nearly the full length of each stem, giving the plant a generous, flowering presence through midsummer. The colour leans toward dark purple-lilac, a deeper shade than is typical for the group, and holds well in full sun. The branching habit creates an open, natural rhythm in mixed plantings, where the flower density reads as a soft band of colour rather than a single vertical line.

‘Purple Haze’ pairs easily with warm-toned perennials and late grasses, and performs reliably in well drained soil with good light. Bees work the spikes steadily as they open.
Pot size
$9.00
Out of stock
Growing Conditions

Light: full sun

Moisture: average to dry

Soil: well drained; lean or lightly improved soils

Hardiness zone: 5

Maintenance: low; remove finished stems in late autumn or leave for light winter structure; divide as needed
Size & Habit

Height (cm): 120

Spread (cm): 60

Habit: upright, widely branching clump
Seasonal Interest

Flowering period: July–Aug

Seasonal interest: midsummer bloom; soft structure into early autumn

Foliage: green

Flower: purple-lilac
Ecology & Notes

Wildlife value: visited by bees and other generalist pollinators

Deer/Rabbit resistance: yes

Habitat: sunny borders; mixed perennial plantings; cottage gardens; gravel beds

Features: widely branched habit; long flower spikes; dark purple-lilac colour; good border presence

Notes: long, flower-laden stems give a fuller appearance than many Agastache; colour works well with Phlox, Echinacea, and Patrinia

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