// SPECIES PROFILE · PERENNIAL · NATIVE

California loosestrife

Lythrum californicum

California loosestrife (Lythrum californicum) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 3a–11a. Mature size 2'–5'. Blooms Mar–Nov.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to AZ, CA, KS, NM, NV, OK, TX, UT
USDA hardiness: Zones 3a–11a
Mature size: 2'–5'
Sun: Full sun
Water: Medium
Bloom: Mar–Nov
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

California loosestrife (Lythrum californicum) — *Lythrum californicum* — California loosestrife. Photo by Stan Shebs via Wikimedia Commons (CC BY-SA 3.0).

Field Notes

[ growing · ecology · siting · care ]

California loosestrife (Lythrum californicum) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 3a–11a. Mature size 2'–5'. Blooms Mar–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, california loosestrife pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Cardinal Flower (Lobelia cardinalis), Lady Fern (Athyrium filix-femina), Sneezeweed (Helenium autumnale).