// SPECIES PROFILE · ANNUAL · NATIVE

Narrowleaf marshelder

Iva angustifolia

Narrowleaf marshelder (Iva angustifolia) is a annual in the — family. Native range includes AR, KS, OK. Hardy in zones 5b–11b. Mature size 17"–2'. Blooms Sep–Nov.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to AR, FL, KS, LA, OK
USDA hardiness: Zones 5b–11b
Mature size: 17"–2'
Sun: —
Water: —
Bloom: Sep–Nov
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Narrowleaf marshelder (Iva angustifolia) — *Iva angustifolia* — Narrowleaf marshelder. Photo by Sam Kieschnick via Wikimedia Commons (CC BY 4.0).

Field Notes

[ growing · ecology · siting · care ]

Narrowleaf marshelder (Iva angustifolia) is a annual in the — family. Native range includes AR, KS, OK. Hardy in zones 5b–11b. Mature size 17"–2'. Blooms Sep–Nov.

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, narrowleaf marshelder pairs naturally with: Black-Eyed Susan (Rudbeckia hirta), Common Sunflower (Helianthus annuus), Indian Blanket (Gaillardia pulchella), Lemon Beebalm (Monarda citriodora).