How to Grow Alkali Saltgrass

Alkali Saltgrass

Distichlis stricta

grass

Alkali saltgrass is a hardy perennial grass native to western North America, known for its exceptional tolerance of saline and alkaline soils where most plants cannot survive. It grows as a low, dense turf and is valued for erosion control, salt marsh restoration, and livestock forage. The fine-textured blue-green foliage provides year-round cover even in harsh, arid conditions.

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Example Alkali Saltgrass timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Alkali Saltgrass

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Alkali Saltgrass

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Alkali Saltgrass dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily; tolerates partial shade but performs best in full sunlight
💧
Water: Drought tolerant once established; requires moderate moisture during establishment. Survives on minimal water in arid regions. Tolerates brackish water and salt spray exceptionally well.
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Spacing: 12-18 inches apart for plugs or rhizome divisions; sow seed at 1-2 lbs per 1000 sq ft inches
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Days to maturity: 90-120 days to establishment; full maturity as turf 1-2 years
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Planting depth: Seeds surface sown or lightly pressed into soil; rhizome divisions planted 1-2 inches deep

Soil

Type: Tolerant of saline, alkaline, and sandy soils; prefers well-draining soil
pH: 7.0-8.5 (highly alkaline tolerant)
Amendments:
Minimal amendments needed; salt and alkali tolerance eliminates most amendment requirements Sand may be added for drainage improvement Avoid peat moss or sulfur that would lower pH

Growing Zones

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Thrives in zones 3-10; particularly valuable in zones 5-9 with saline or alkaline soils

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a

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Growth Stages

1

Seed/Germination

2-3 weeks

Seeds begin to sprout in cool to warm weather; fine grass blades emerge from soil

Keep soil consistently moist but not waterlogged for 3-4 weeks; germination can be slow and uneven

2

Seedling & Establishment

4-8 weeks

Young grass develops multiple shoots and fine root system; begins forming turf mat

Maintain adequate moisture; protect from heavy foot traffic; reduce watering frequency as growth accelerates

3

Vegetative Growth

3-6 months

Rhizomes spread laterally; dense, fine-textured turf develops; blue-green color intensifies

Water moderately during dry periods; no fertilizer typically needed due to salt/alkali tolerance; avoid overwatering in established stands

4

Flowering & Seed Production

1-2 months

Delicate seed heads emerge from turf in late spring to early summer; panicles are fine and upright

Allow flowering to complete for seed dispersal if natural regeneration desired; mow to 2-3 inches after seed drop

5

Dormancy & Winter

3-4 months

Growth slows in fall; foliage retains blue-green color throughout winter in most zones; remains living mulch

No special care needed; grass provides erosion protection and wildlife cover through winter; do not overwater

Companion Planting

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Plant with:

Saltbush (Atriplex species) Greasewood (Sarcobatus vermiculatus) Shadscale (Atriplex confertifolia) Russian thistle (for arid, saline conditions) Rabbitbrush (Chrysothamnus nauseosus)

Avoid planting near:

Salt-sensitive plants (most cultivated ornamentals) Acid-loving plants (azaleas, blueberries) Plants requiring moist conditions (most ferns, sedges preferring fresh water) Turf grasses bred for non-saline conditions

Common Pests

  • Generally tolerated; severe infestations rarely occur; native predators typically control populations

  • Minimal damage in saline environments; rarely requires intervention; native parasitoid wasps provide biological control

  • Maintain adequate drainage to prevent standing water; does not harbor mosquitoes itself but site conditions may

Uses

🦋

Habitat & Forage for Waterfowl

Wildlife

Alkali saltgrass provides critical habitat and forage for waterfowl, shorebirds, and wildlife in salt marshes and alkali wetlands. Seeds and shoots are consumed by ducks, geese, and other wetland birds. [source]

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Erosion Control & Restoration

Household

Extensively used for stabilizing banks in saline environments, restoring degraded wetlands, and controlling erosion in coastal and interior salt marshes. Its rhizomatous growth binds soil effectively where conventional grasses fail. [source]

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Livestock Forage in Marginal Lands

Culinary

Provides nutritious pasture for cattle, sheep, and horses in arid and saline regions where other forages cannot be established. Highly productive in soil conditions unsuitable for conventional ranching. [source]

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Native Landscaping & Reclamation

Craft

Used in native plant landscapes, xeriscape designs, and ecological restoration projects in western North America. Eliminates the need for soil amendment or irrigation in naturally saline or alkaline sites. [source]

💊

Traditional Food & Medicine

Medicinal

Historically used by indigenous peoples of the American West as a food source and in traditional medicine preparations, though modern applications are primarily ecological and agricultural. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Not typically harvested as Distichlis stricta is grown for turf, erosion control, and ecological restoration rather than hay production. If harvested as forage, cut when heads are fully emerged but before seed shatters (late spring to early summer). Reestablishment from rhizomes means single harvests do not damage stand.

Fun Facts

  • 🌱 Distichlis stricta is a halophyte, meaning it can actively absorb and concentrate salt from the soil without damage—a rare adaptation that allows it to thrive where salinity levels would kill 99% of plant species.
  • 🌱 The genus name 'Distichlis' refers to the two-ranked arrangement of grass leaves (distichous means arranged in two rows), a distinctive characteristic visible on close inspection.
  • 🌱 Alkali saltgrass is the only grass that can reliably establish turf in some of the most alkaline soils on Earth, with pH levels exceeding 8.5 where no other vegetation can grow.

Gardening Terms

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