How to Grow Nuttall Saltbush

iNaturalist

Nuttall Saltbush

Atriplex nummularia

shrub

Nuttall saltbush is a hardy, drought-tolerant woody shrub native to arid and semi-arid regions of Australia. It grows 1-3 meters tall with distinctive rounded, succulent-like gray-green foliage and produces small inconspicuous flowers followed by winged fruit. This halophytic plant thrives in saline and alkaline soils where many other plants cannot survive, making it valuable for land reclamation and fodder production.

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Example Nuttall Saltbush timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Nuttall Saltbush

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Nuttall Saltbush

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️
Sun: Full sun, 8+ hours daily; essential for dense growth and vigor
💧
Water: Extremely drought-tolerant once established; minimal watering needed in most climates. Water weekly during establishment (first 3-4 months), then only during prolonged droughts. Reduce watering in humid regions to prevent fungal issues.
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Spacing: 36-60 inches (90-150 cm) between plants inches
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Days to maturity: Not applicable; perennial shrub reaches productive maturity in 2-3 years
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Planting depth: Plant at same depth as root ball; seeds sown 0.5 inches deep

Soil

Type: Well-draining sandy, loamy, or clay soils with high salt tolerance; actually improves in degraded, saline, or alkaline soils
pH: 7.0-8.5 (tolerates alkaline conditions)
Amendments:
Minimal amendments needed; actually tolerates poor soil Sand or gravel for improved drainage in wet climates No organic matter needed; prefers lean conditions

Growing Zones

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Thrives in zones 9-11; cold-hardy to approximately -5°C (23°F)

9a 9b 10a 10b 11a 11b

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Growth Stages

1

Establishment

3-4 months

Young seedlings or transplants developing initial root system; slow initial growth typical

Water regularly (weekly) to establish deep roots; provide light shade in very hot climates; protect from strong winds; mulch lightly to retain moisture without waterlogging

2

Vegetative Growth

1-2 years

Plant develops woody stems and dense gray-green foliage; gradually increases in height and spread

Minimal supplemental watering; prune lightly to encourage branching and bushier form; apply slow-release fertilizer or allow plants to self-sustain in poor soils

3

Flowering

2-3 months (spring to early summer)

Small, inconspicuous monoecious flowers appear on branch tips; flowers are wind-pollinated and lack petals

No special care needed; ensure adequate sun exposure for flowering; male and female flowers on separate parts of plant

4

Fruiting & Seed Production

3-4 months (late spring through fall)

Female flowers develop into characteristic winged fruits; seeds mature within papery, often colorful bracts

Allow fruits to mature on plant; harvest seeds when bracts turn papery brown; fruits persist on branches and provide wildlife value

5

Dormancy & Maintenance

4-6 months (fall/winter)

Plant enters semi-dormant state; foliage may lighten in color, growth slows dramatically

No watering needed in winter unless extremely dry; light pruning acceptable to maintain shape; remove any dead branches; plant remains evergreen in frost-free zones

Companion Planting

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Plant with:

Desert marigold (Baileya multiradiata) Creosote bush (Larrea tridentata) Desert rosemary (Ericameria nauseosa) Wolfberries (Lycium species) Desert broom (Baccharis sarothroides) Fourwing saltbush (Atriplex canescens)

Avoid planting near:

Acid-loving plants (blueberries, azaleas, rhododendrons) Moisture-demanding plants (willows, birches, astilbes) Plants intolerant of alkaline soils (most heaths)

Common Pests

  • Monitor for leaf damage; allow natural predators to manage populations; rarely requires intervention; tolerant to light defoliation

  • Spray with horticultural oil during active growth; prune affected branches; rarely problematic in arid conditions

  • Ensure well-draining soil; avoid overwatering; improve air circulation; remove affected plants if severely compromised; use well-draining potting mix for container plants

Uses

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Livestock Fodder & Browse

Livestock

Highly nutritious fodder for sheep, goats, cattle, and camels, especially valuable in arid regions where traditional pastures fail. Maintains nutritional value year-round and can sustain livestock during droughts, with crude protein content of 8-15% in leaves. [source]

🏠

Land Reclamation & Soil Improvement

Household

Used extensively in salt-affected and degraded lands to rehabilitate soil while providing productive biomass. The plant tolerates and can help desalinate saline soils through phytoextraction, making it ideal for contaminated or eroded sites. [source]

🍳

Edible Leaves & Seeds

Culinary

Young leaves and shoots are edible with a slightly salty flavor and can be eaten raw or cooked like spinach. Seeds are nutritious and can be ground into flour or eaten whole, containing healthy oils and protein. [source]

🦋

Wildlife Habitat & Food

Wildlife

Provides shelter and food for birds, insects, and small mammals, particularly important in arid ecosystems. The seed-bearing fruits attract granivorous birds and the dense foliage offers nesting sites. [source]

🎨

Dye Production

Craft

Leaves and stems can produce natural dyes ranging from yellow to brown tones, used historically by indigenous peoples and textile artisans. [source]

Harvest Tips

Seeds mature 3-4 months after flowering and are ready when the papery bracts turn brown. Collect seed-bearing branches, dry completely in shade, and thresh to separate seeds. For fodder use, harvest fresh leaves and young branches year-round; young growth is most palatable for livestock. Can be cut for browse production on a 2-3 year coppicing cycle. Clip lightly to encourage bushier growth or intensively graze with livestock.

Fun Facts

  • 🌱 Atriplex nummularia is one of the most salt-tolerant woody shrubs known, capable of surviving in soils with salinity levels that would kill most plants; it can even be irrigated with saline water in arid regions.
  • 🌱 The common name 'Nuttall Saltbush' honors Thomas Nuttall, a 19th-century naturalist and plant collector, though the species is native to Australia, not North America.
  • 🌱 In drought-affected regions like Australia and the Middle East, this shrub has been cultivated for millennia and is sometimes called 'drought-resistant treasure' because it provides reliable nutrition for livestock when little else survives, potentially generating income even in severely degraded landscapes.

Gardening Terms

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