Sticky Gymnosperma Plant Care

Sticky Gymnosperma (Gymnosperma glutinosum) belongs to the Asteraceae family within the Gymnosperma genus. Sticky Gymnosperma is native to Mexico, Guatemala, and the southwestern United States.

Sticky Gymnosperma displays a tall, upright shrub growth habit, reaching up to 5 ft tall with a spread of approximately 3 ft. Sticky Gymnosperma produces small yellow composite flowers in clusters.

Leaf size: approximately 4 inches.

Water a young or newly planted Sticky Gymnosperma 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.

Sticky Gymnosperma thrives in full sun to partial shade.

Gymnosperma glutinosum tolerates temperatures of 60–80°F. Sticky Gymnosperma prefers humidity levels of 40–70%.

Well-draining sandy soil mix with added organic matter for nutrients. Good drainage is essential for Sticky Gymnosperma to prevent waterlogging, which leads to root rot and fungal issues.

Feed Sticky Gymnosperma 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 well-draining sandy soil mix with added organic matter for nutrients. Avoid low spots where water collects after rain.

Sticky Gymnosperma is suited to USDA Zone 8a – 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.

Sticky Gymnosperma can spread to about 3 ft (0.9 m) and reach about 5 ft (2 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 tree spacing calculator.

Prune Sticky Gymnosperma 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.

Sticky Gymnosperma is hardy down to USDA zone 8a, 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.

Sticky Gymnosperma can be propagated through seeds, stem cuttings.

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

Sticky Gymnosperma 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.

Sticky Gymnosperma grows outdoors in USDA Zone 8a – 11b. It survives winters down to planting zone 8a. Sticky Gymnosperma is native to Mexico, Guatemala, and the southwestern United States.