Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Alkali Sacaton (Sporobolus airoides) is a moderately fast-growing and moderately long-lived bunchgrass, native to southern and central California. It thrives in a variety of habitats, from coastal areas to foothills, central valley, and desert mountains, typically in locations with slightly more moisture. Its most notable feature is its ability to tolerate alkaline soils, which is reflected in its name. Early settlers viewed it as an indicator of underground water. This grass grows upright to a height of 3 feet, with active growth in spring and summer, producing yellow flowers that bloom in mid-summer. The showy seedheads persist throughout the summer and last for many months. The medium green leaves are deciduous and fall off in winter.

Alkali Sacaton is found in moist, but not saturated, places at elevations ranging from 0 to 6,900 feet. It can tolerate occasional foot traffic, but it should not be considered as a replacement for a lawn in areas that experience regular or heavy foot traffic.

Plant type

Grass

Size

3 - 4 ft Tall
2 ft Wide

Form

Upright, Fountain

Growth rate

Moderate

Dormancy

Winter Deciduous

Fragrance

None

Calscape icon
Color

Yellow

Flowering season

Summer

Special uses

Deer resistant, Groundcover, Lawn alternative

Sun

Full Sun

Water

Very Low, Low

Summer irrigation

Max 2x / month once established

Ease of care

Easy

Cold tolerance

Tolerates cold to 5° F

Soil drainage

Medium

Soil description

Tolerates a variety of soils. Tolerates sodic soil..
Soil PH: 7.0 - 9.0

Maintenance

Dormant plants may be cut back

Propagation

For propagating by seed: Soak in 1% (2% okay) potassium nitrate for 24 hrs.; sowing wet gives slightly better results than air drying 1-3 days first. Germinate at high diurnal fluctuation, room temperature (70.5° to 78.8°) and 91.4°P (Anonymous 1944). No treatment. but using the high diurnal fluctuation (60.8° to 75.2°) and 95°P may also give good results [Toole 1941); for fresh seeds 2 wks. stratification first may improve germination (Toole 1941). No treatment. if sown outdoors in southern California during July or August may give good germination.

Sunset Zones

1, 2, 3, 7*, 8*, 9*, 10*, 11*, 12*, 13*, 14*, 15*, 16*, 17*, 18*, 19*, 20*, 21*, 22*, 23*, 24*

Site type

Found in generally arid landscapes where there is underground moisture, including alkaline sinks, playas, edges of vernal pools or seasonal drainages

Plant communities

Alkali Sink, Coastal Sage Scrub, Wetland-Riparian

Use with other moisture loving or alkali-tolerant plants such as Saltbush (Atriplex spp.), Apache Plume (Fallugia paradoxa), Rush (Juncus spp.), Evening Primrose (Oenothera elata), and Antelope Bitterbrush (Purshia tridentata)

Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 2 likely

Confirmed Likely

Wandering Skipper

Panoquina errans

Sandhill Skipper

Polites sabuleti