How to grow grey saltbush
Overview
Grey saltbush (Atriplex cinerea) is a hardy, salt-tolerant shrub with edible, salty-tasting leaves. It is grown for its ornamental silvery foliage and as a low-maintenance, drought-tolerant ground cover or hedge in coastal and dry gardens.
Soil Preparation
Grey saltbush prefers slightly alkaline to neutral soil (pH 6.5–8.0) with excellent drainage. Amend heavy clay with sand or gravel; add compost only if soil is very poor. It thrives in coastal, sandy soils without additional fertiliser.
Growing Guide
Plant grey saltbush in full sun with well-drained, sandy or loamy soil; avoid heavy clay. Space plants 1–1.5 m apart for a dense hedge or 2 m for individual specimens. Direct sow seeds 5 mm deep in late spring or early summer, or transplant seedlings after the last frost. Water sparingly until established, then only during prolonged dry spells.
Sowing
Sow grey saltbush seeds directly in late spring or early summer at 5 mm depth, 30 cm apart, and thin to 1 m spacing. Germination takes 10–14 days in warm, moist conditions; transplant is not recommended as seedlings have a fragile taproot.
Care
Feed grey saltbush lightly in spring with a balanced, slow-release fertiliser (e.g., 8-3-9). Prune after harvest to shape and remove old, woody stems; mulch with organic matter to retain moisture and suppress weeds.
Companion Planting
Grow grey saltbush with other salt-tolerant plants like coastal rosemary (Westringia fruticosa), pigface (Carpobrotus glaucescens), and native grasses (e.g., Poa poiformis). Avoid planting near moisture-loving vegetables or in low-lying, waterlogged areas.
Common Pests & Risks
Grey saltbush is generally pest-free but may occasionally attract aphids or scale insects. Control with a strong water spray or horticultural oil; avoid overwatering to prevent root rot.
Harvesting
Harvest young, tender leaves sparingly from late spring to early autumn, taking no more than one-third of the plant at a time. Leaves are best picked fresh for immediate use in salads or as a salty seasoning.
In the Kitchen
Use grey saltbush leaves fresh in salads, as a spinach substitute, or lightly steamed. Their salty flavour complements seafood, lamb, and eggs; store in a sealed bag in the fridge for up to 5 days.
Troubleshooting
Yellow leaves: overwatering or poor drainage—reduce water and improve soil. Brown leaf edges: salt spray or windburn—plant in a sheltered spot. Leggy growth: insufficient sun—move to full sun. Stunted growth: heavy clay soil—amend with sand or gravel.