Shrubby glasswort Plant Care

Shrubby glasswort (Arthrocnemum arbuscula) belongs to the Amaranthaceae family within the Arthrocnemum genus. Shrubby glasswort is native to Australia. Shrubby glasswort is also known as Australian samphire.

Shrubby glasswort displays a low, spreading shrub growth habit, reaching up to 1.5 ft tall with a spread of approximately 3 ft. Shrubby glasswort produces small, inconspicuous flowers.

Leaf size: approximately 2 inches.

Water a young or newly planted Shrubby glasswort every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Shrubby glasswort thrives in full sun.

Arthrocnemum arbuscula tolerates temperatures of 60–85°F. Shrubby glasswort prefers humidity levels of 40–70%.

Sandy, saline soil with good drainage. Good drainage is essential for Shrubby glasswort to prevent waterlogging, which leads to root rot and fungal issues.

Feed Shrubby glasswort every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

The PlantoScan app can remind you when to water and when to fertilize each plant.

Choose a spot with full sun and sandy, saline soil with good drainage. Avoid low spots where water collects after rain.

Shrubby glasswort is suited to USDA Zone 13a.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

Shrubby glasswort can spread to about 3 ft (0.9 m) and reach about 2 ft (0 m) tall. Space plants about 3 ft (0.9 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

Prune Shrubby glasswort while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

Shrubby glasswort is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Shrubby glasswort can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to samphire plant care, which shares the same genus.

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Shrubby glasswort is susceptible to aphids, whiteflies, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

Shrubby glasswort grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Shrubby glasswort is native to Australia. In cooler regions, grow Shrubby glasswort as a houseplant or bring it indoors before the first frost.