// SPECIES PROFILE · PERENNIAL · NATIVE

Purple giant hyssop

Agastache scrophulariifolia

Purple giant hyssop (Agastache scrophulariifolia) is a perennial in the — family. Native range includes KS, MO. Hardy in zones 2b–9a. Mature size 2'–5'. Blooms Jul–Sep.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 28 U.S. states, including CT, DC, DE, GA, IA, IL…
USDA hardiness: Zones 2b–9a
Mature size: 2'–5'
Sun: Full sun
Water: —
Bloom: Jul–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Purple giant hyssop (Agastache scrophulariifolia) — *Agastache scrophulariifolia* — Purple giant hyssop. Photo by Alaina Krakowiak via Wikimedia Commons (CC BY 4.0).

Field Notes

[ growing · ecology · siting · care ]

Purple giant hyssop (Agastache scrophulariifolia) is a perennial in the — family. Native range includes KS, MO. Hardy in zones 2b–9a. Mature size 2'–5'. Blooms Jul–Sep.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, purple giant hyssop pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Butterfly Milkweed (Asclepias tuberosa), Common Blue Violet (Viola sororia), Common Boneset (Eupatorium perfoliatum).