Atriplex halimus aka Shrubby Orache

Atriplex halimus is a shrub from the Mediterranean region. It belongs to the Amaranthaceae family. Common names include sea orach, saltbush, and tree purslane. It grows on coastal sands and in saltmarshes. These habitats help explain its value in seaside gardens. It is not native to Britain or Ireland.

This bushy shrub keeps some of its leaves through winter. Garden plants reach 5–8 feet (1.5–2.5 m) tall. Their spread reaches about 3–5 feet (1–1.5 m). The RHS also describes a compact form around 6.6 feet (2 m). Plants take five to ten years to reach full size. The oval leaves have a silver-grey cast. Each leaf can reach about 2 inches long. The pale foliage provides interest beyond the flowering season. Small greenish flowers sometimes appear in loose sprays during summer. They are much less showy than the leaves.

Grow this shrub in full sun with good soil drainage. It suits dry ground with low to moderate fertility. The RHS lists chalk, loam, and sand as suitable soils. It accepts acid, neutral, and alkaline conditions. Choose a site sheltered from cold, drying winds. Its UK hardiness rating is H4. PFAF lists it for USDA zones 7–10. Salt tolerance makes it useful where many garden plants struggle. It suits coastal gardens but can also grow inland.

Use it as a low hedge, screen, or border shrub. It also fits gravel gardens, courtyards, and informal planting schemes. Hedges can grow freely or receive regular trimming. Plants tolerate pruning, including cuts into old wood. Other uses include windbreaks, erosion control, and soil stabilisation. Livestock can browse it as forage. Ash from the plant has supplied alkali for soap making. The RHS reports few usual pest or disease problems. Softwood cuttings taken in summer provide a means of propagation.

The leaves can be eaten raw or cooked. They have a salty taste, even when grown in non-salty soil. They can go into salads or serve as cooked greens. Light steaming helps them keep some crispness. Leaves are available throughout the year, but winter picking should stay light. PFAF also lists seeds and manna as edible parts. It reports no inherent toxins, but gives a cultivation warning. Artificial fertilisers can cause harmful nitrate levels in the leaves. PFAF records a traditional antacid powder made by burning shoots.