Australian saltbush
Atriplex semibaccata · Chenopodiaceae
Australian saltbush (Atriplex semibaccata) is a perennial herbaceous plant in the Chenopodiaceae family. It is introduced to North America rather than native. USDA records it as hardy in zone 7 and warmer, down to about 7°F.
At a glance
| Type | forb-herb Derived |
|---|---|
| Lifecycle | perennial USDA |
| Native status | introduced USDA |
| Mature height | 0.5 ft USDA |
| Light | part-shade USDA |
| Water need | low USDA |
| Growth rate | slow USDA |
| Soil pH | 7–8.5 USDA |
| Flower color | Yellow USDA |
| Hardiness zones | 7 and warmer USDA |
| Guild layer | ground-cover Derived |
| Nursery availability | Routinely Available USDA |
USDA quoted from the USDA PLANTS database · Derived computed by a fixed rule from those columns. No value on this page is estimated.
Growing conditions
It grows in partial shade. USDA rates it as having low water needs once established. Its drought tolerance is rated medium. It will not tolerate waterlogged soil — USDA rates its anaerobic tolerance as none. It is recorded on soils from pH 7 to 8.5 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 7.
Size and growth
At maturity it reaches about 0.5 ft, making it a low, mat-forming plant. It grows slowly.
Foliage, flower and season
Summer foliage is green, medium in texture. Its flowers are not conspicuous — a plant for form and foliage. Its active growth period is spring and summer. USDA rates its lifespan as moderate.
What the site needs to provide
USDA records it across sites receiving 8 to 16 inches of annual precipitation. The low end of that band is genuinely arid, so it has a wide tolerance for dry country. It needs at least 165 frost-free days to finish its season. It roots to at least 14 inches. Fertility requirement: low — no feeding needed on ordinary garden soil.
Propagating it
Propagate it from seed, bare root and container stock. USDA records no cold-stratification requirement, so seed should germinate without a chilling period. Its seed spreads at a slow rate. It spreads vegetatively at a slow rate.
Resilience and wildlife
Browsing animals rate it barely palatable — the sourced basis for calling it deer-resistant. Its fire tolerance is rated none, and it can resprout after damage. Its growth form is recorded as colonizing.
Role in a guild
Ground cover. In a layered planting this is the lowest layer — it shades soil, holds moisture, and suppresses weeds. The layer is derived by a fixed rule from growth habit and mature height.
Tags
Related plants
Others in Atriplex
- moundscale Atriplex ×aptera
- fourwing saltbush Atriplex canescens
- shadscale saltbush Atriplex confertifolia
- sickle saltbush Atriplex falcata
Similar role and hardiness
- southwestern pricklypoppy Argemone pleiacantha
- sulphur-flower buckwheat Eriogonum umbellatum
- California poppy Eschscholzia californica
- Rainier pleated gentian Gentiana calycosa
- tanglehead Heteropogon contortus
Where this data comes from
Every value on this page comes from the USDA PLANTS database record for symbol ATSE, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.
- Quoted from USDA PLANTS: active growth period, browse palatability, cold stratification, Drought tolerance, fall conspicuous, fertility requirement, fire tolerance, Flower color, flower conspicuous, foliage color, foliage porosity winter, foliage texture, frost free days min, fruit conspicuous, growth form, Growth rate, Hardiness zones, Lifecycle, lifespan, Light, Mature height, Minimum temperature, Native status, Nitrogen fixation, Nursery availability, precipitation max in, precipitation min in, propagation, resprout ability, root depth in, seed spread rate, Soil pH, Soil pH (upper), Tolerance of wet soil, Toxicity, vegetative spread rate, Water need.
- Derived by a fixed rule from those columns: Guild layer, Type.
Read our full data sources and methodology.
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