Roof Reed Plant Care

Roof Reed (Elegia tectorum) belongs to the Restionaceae family within the Elegia genus. Roof Reed is native to marshes and seeps on deep sand in the Western Cape and Eastern Cape of South Africa. Roof Reed is also known as Cape Thatching Reed.

Roof Reed displays an upright, clumping grass-like growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Roof Reed produces small inconspicuous flowers.

Leaf size: approximately 12 inches.

Water a young or newly planted Roof Reed 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.

Roof Reed thrives in full sun to partial shade.

Elegia tectorum tolerates temperatures of 50–80°F. Roof Reed prefers humidity levels of 40–70%.

Sandy, well-draining soil mix with low nutrient content. Good drainage is essential for Roof Reed to prevent waterlogging, which leads to root rot and fungal issues.

Feed Roof Reed every 8 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 to partial shade and sandy, well-draining soil mix with low nutrient content. Avoid low spots where water collects after rain.

Roof Reed is suited to USDA Zone 12a.

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.

Roof Reed can spread to about 2 ft (0.6 m) and reach about 3 ft (1 m) tall. Space plants about 2 ft (0.6 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 Roof Reed 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.

Roof Reed is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Roof Reed can be propagated through division, seed. Similar propagation techniques also apply to cape thatching reed plant care, which shares the same genus.

See all plants toxic to cats and plants toxic to dogs.

Roof Reed is susceptible to spider mites, scale insects. 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.

Roof Reed grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Roof Reed is native to marshes and seeps on deep sand in the Western Cape and Eastern Cape of South Africa. In cooler regions, grow Roof Reed as a houseplant or bring it indoors before the first frost.