Dendrosenecio kilimanjari subsp. cottonii Plant Care

Dendrosenecio kilimanjari subsp. cottonii (Dendrosenecio kilimanjari subsp. cottonii) belongs to the Asteraceae family within the Dendrosenecio genus.

Dendrosenecio kilimanjari subsp. cottonii displays a tall, single-stemmed growth habit, reaching up to 10 ft tall with a spread of approximately 2 ft. Dendrosenecio kilimanjari subsp. cottonii produces large yellow daisy-like flowers in clusters.

Leaf size: approximately 12 inches.

Water a young or newly planted Dendrosenecio kilimanjari subsp. cottonii 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.

Dendrosenecio kilimanjari subsp. cottonii thrives in full sun to partial shade.

Dendrosenecio kilimanjari subsp. cottonii tolerates temperatures of 50–75°F. Dendrosenecio kilimanjari subsp. cottonii prefers humidity levels of 40–70%.

Well-draining sandy soil with added organic matter for moisture retention. Good drainage is essential for Dendrosenecio kilimanjari subsp. cottonii to prevent waterlogging, which leads to root rot and fungal issues.

Feed Dendrosenecio kilimanjari subsp. cottonii 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 with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Dendrosenecio kilimanjari subsp. cottonii is suited to USDA Zone 12a.

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.

Dendrosenecio kilimanjari subsp. cottonii can spread to about 2 ft (0.6 m) and reach about 10 ft (3 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 tree spacing calculator.

Prune Dendrosenecio kilimanjari subsp. cottonii 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.

Dendrosenecio kilimanjari subsp. cottonii 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.

Dendrosenecio kilimanjari subsp. cottonii can be propagated through seeds. Similar propagation techniques also apply to dawe 663 plant care, which shares the same genus.

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

Dendrosenecio kilimanjari subsp. cottonii is susceptible to aphids, 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.

Dendrosenecio kilimanjari subsp. cottonii grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. In cooler regions, grow Dendrosenecio kilimanjari subsp. cottonii as a houseplant or bring it indoors before the first frost.