Glaux maritima L.

vernacular sea milkwort — species · Primulaceae

USDA: GLMA
GBIF: 4007442 syn.
Rank: species

sea milkwort (Glaux maritima) — Platephotograph · Samuel Brinker source · iNaturalist ↗

§2Habit & range

Growth habit: Forb/herb
Duration: Perennial
Group: Dicot
Family: Primulaceae Batsch
Genus: Glaux

§2a

Native status, by region

AK Alaska Native
CAN Canada Native
L48 Lower 48 States Native
SPM St. Pierre & Miquelon Native

§2b

County-level range

· 8 counties across 2 states/territories

Legend Native · 8 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought: None
Shade: High
Moisture use: High
Fire: Low
Salinity: None
Anaerobic: High
CaCO₃: High
Hedging: None

§3b

Climate & soil

Cold tolerance: -33 °F minimum
Frost-free days: 150 min.
Precipitation: 12–55 in/yr
pH range: 6.5–8.8
Root depth: 8 in min.
Fertility need: Low
Soil texture: coarse, medium, fine

§3c

Form & growth

Growth form: Rhizomatous
Growth rate: Moderate
Lifespan: Moderate
Mature height: 0.9 ft
Foliage texture: Medium
Foliage colour: Green
Porosity (summer): Porous
Porosity (winter): Porous
Flower colour: White
Fruit colour: Brown
Fire resistant: No
N fixation: None
Toxicity: None

§3d

Reproduction

Bloom period: Late Spring
Seed abundance: Low
Seed begins: Summer
Seed ends: Summer
Spread rate: Slow
Stratify: No
Seeds / lb: 600,000
Propagation: seed

§3e

Use & availability

Commercial availability: No Known Source
Nursery stock: No
Palatable, human: No
Lumber: No
Christmas tree: No

§4Counties, by state

Recorded in 8 counties across 2 states/territories.

Montana view state ↗ 7 N ▾

Rhode Island view state ↗ 1 N ▾

Washington 44009

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/GLMA ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/4007442 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-25

fetched 2026-05-25T18:27:19Z