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Purple Giant Hyssop

Agastache scrophulariifolia, Lamiaceae

Zones
4–8
Layer
Herbaceous
Lifespan
Perennial
Growth
Fast

Guild Roles

Pollinator AttractorBeneficial Insect HabitatPest Confuser

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

Moderate (established)High (seedling)

Soil pH

6 – 8

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Three-nerved Joe-Pye WeedEutrochium dubium
Pollinator SharingBeneficial Insect Habitat
Hoary Mountain MintPycnanthemum incanum
Pest DeterrentBeneficial Insect Habitat
Short's AsterSymphyotrichum shortii
Pest DeterrentPollinator SharingBeneficial Insect Habitat

Antagonistic Plants

Willowleaf AsterSymphyotrichum praealtum

Giant hyssop's strong essential oils may have allelopathic effects on nearby asters

Uses

Functions

Attracts Native Bees And Bumble BeesSupports Parasitic WaspsHosts Beneficial Predatory BeetlesProvides Late Season NectarAttracts Hoverflies

Edible Parts

LeavesFlowers

Medicinal Uses

Digestive AidRespiratory Support

Common Questions

What zones does Purple Giant Hyssop grow in?

Purple Giant Hyssop grows in USDA hardiness zones 4 through 8.

What are good companion plants for Purple Giant Hyssop?

Good companions for Purple Giant Hyssop include Three-nerved Joe-Pye Weed, Hoary Mountain Mint, Short's Aster.

Design guilds with Purple Giant Hyssop and see companion relationships visually.

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