Mexican Balsam Poplar Plant Care

Mexican Balsam Poplar (Balsamiflua mexicana) belongs to the Salicaceae family within the Balsamiflua genus. Mexican Balsam Poplar is native to Mexico.

Mexican Balsam Poplar displays a fast-growing tree growth habit, reaching up to 30 ft tall with a spread of approximately 20 ft. Mexican Balsam Poplar produces small, inconspicuous flowers in clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted Mexican Balsam Poplar every 7–10 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.

Mexican Balsam Poplar thrives in full sun to partial shade.

Balsamiflua mexicana tolerates temperatures of 60–85°F. Mexican Balsam Poplar prefers humidity levels of 40–70%.

Moist, well-draining soil rich in organic matter. Good drainage is essential for Mexican Balsam Poplar to prevent waterlogging, which leads to root rot and fungal issues.

Feed Mexican Balsam Poplar 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 to partial shade and moist, well-draining soil rich in organic matter. Avoid low spots where water collects after rain.

Mexican Balsam Poplar is suited to USDA Zone 13a.

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.

Mexican Balsam Poplar can spread to about 20 ft (6.1 m) and reach about 30 ft (9 m) tall. Space plants about 20 ft (6.1 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 Mexican Balsam Poplar 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.

Mexican Balsam Poplar 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.

Mexican Balsam Poplar can be propagated through seeds, softwood cuttings.

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

Mexican Balsam Poplar is susceptible to aphids, scale insects, caterpillars. 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.

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