Cider Gum Plant Care

Cider Gum (Eucalyptus gunnii) belongs to the Myrtaceae family within the Eucalyptus genus. Cider Gum is native to Tasmania, southeastern Australia. Cider Gum is also known as Apple Gum, Gunn's Gum.

Cider Gum displays a fast-growing tall tree growth habit, reaching up to 100 ft tall with a spread of approximately 50 ft. Cider Gum produces small white, cream, or pink flowers in clusters.

Leaf size: approximately 6 inches.

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

Cider Gum thrives in full sun.

Eucalyptus gunnii tolerates temperatures of 50–85°F. Cider Gum prefers humidity levels of 40–70%.

Well-draining sandy loam with some organic matter. Good drainage is essential for Cider Gum to prevent waterlogging, which leads to root rot and fungal issues.

Feed Cider Gum every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established trees 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 well-draining sandy loam with some organic matter. Avoid low spots where water collects after rain.

Cider Gum is suited to USDA Zone 7a – 10b.

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

Cider Gum can spread to about 50 ft (15.2 m) and reach about 100 ft (30 m) tall. Space plants about 50 ft (15.2 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 tree spacing calculator.

Prune Cider Gum 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 tree in one year.

Cider Gum is hardy down to USDA zone 7a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown trees need extra protection: roots in a pot freeze much more easily than roots in the ground.

Cider Gum can be propagated through seeds, cuttings. Similar propagation techniques also apply to silver dollar eucalyptus plant care, which shares the same genus.

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

Cider Gum is susceptible to lerp psyllids, eucalyptus gall wasp. 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.

Cider Gum grows outdoors in USDA Zone 7a – 10b. It survives winters down to planting zone 7a. Cider Gum is native to Tasmania, southeastern Australia.