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Blue giant hyssop

English
  • Annuals, perennials and bulbs
Photo: Jardin botanique de Montréal (Gilles Murray)

Onglets

Botany

Origin and description

Perennial native to central North America. The species was introduced to Québec. Its purplish blue flowers attract butterflies and pollinators at the end of summer. The foliage smells of anise. The plant is highly drought-tolerant.

Height: 75 to 125 cm
Width: 40 cm 
Flowering: purplish blue, July to September
Attractions for wildlife: attracts pollinators and butterflies

Common name

Blue giant hyssop

Latin name (genus)

Agastache foeniculum

French common name

Botanical family

  • Lamiaceae
Horticulture

Growing conditions

Exposure: sun, semi-shade
Soil type: fresh to dry, well-drained

Hardiness

  • Zone 4

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