Fissured Chinquapin Plant Care

Fissured Chinquapin (Castanopsis fissa) belongs to the Fagaceae family within the Castanopsis genus. Fissured Chinquapin is native to Southeast China, Hong Kong, Laos, Thailand and Vietnam. Fissured Chinquapin is also known as Chinese Chestnut.

Fissured Chinquapin displays a tall, spreading tree growth habit, reaching up to 50 ft tall with a spread of approximately 30 ft. Fissured Chinquapin produces small inconspicuous flowers.

Leaf size: approximately 6 inches.

Water a young or newly planted Fissured Chinquapin 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.

Fissured Chinquapin thrives in full sun to partial shade.

Castanopsis fissa tolerates temperatures of 60–80°F. Fissured Chinquapin prefers humidity levels of 40–70%.

Well-draining loamy soil with high organic content. Good drainage is essential for Fissured Chinquapin to prevent waterlogging, which leads to root rot and fungal issues.

Feed Fissured Chinquapin every 8 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 to partial shade and well-draining loamy soil with high organic content. Avoid low spots where water collects after rain.

Fissured Chinquapin is suited to USDA Zone 9a – 11b.

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.

Fissured Chinquapin can spread to about 30 ft (9.1 m) and reach about 50 ft (15 m) tall. Space plants about 30 ft (9.1 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 Fissured Chinquapin 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.

Fissured Chinquapin is frost-tender (hardy to USDA zone 9). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Fissured Chinquapin can be propagated through seeds, grafting. Similar propagation techniques also apply to graceful chinkapin plant care, which shares the same genus.

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

Fissured Chinquapin is susceptible to aphids, caterpillars, 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.

Fissured Chinquapin grows outdoors in USDA Zone 9a – 11b. It survives winters down to planting zone 9a. Fissured Chinquapin is native to Southeast China, Hong Kong, Laos, Thailand and Vietnam. In cooler regions, grow Fissured Chinquapin as a houseplant or bring it indoors before the first frost.