Astrophyllum insigne Plant Care

Astrophyllum insigne (Astrophyllum insigne) belongs to the Mniaceae family within the Astrophyllum genus. Astrophyllum insigne is native to western North America.

Astrophyllum insigne displays a low rosette, clumping growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Astrophyllum insigne produces large, showy blooms in shades of red, orange, or yellow.

Leaf size: approximately 6 inches.

Water a young or newly planted Astrophyllum insigne every 10–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Astrophyllum insigne thrives in bright indirect light. Avoid placing Astrophyllum insigne in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Astrophyllum insigne tolerates temperatures of 60–80°F. Astrophyllum insigne prefers humidity levels of 40–60%.

Well-draining, sandy soil mix with added peat moss and perlite. Good drainage is essential for Astrophyllum insigne to prevent waterlogging, which leads to root rot and fungal issues.

Feed Astrophyllum insigne every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs 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 bright indirect light and well-draining, sandy soil mix with added peat moss and perlite. Avoid low spots where water collects after rain.

Astrophyllum insigne is suited to USDA Zone 13a.

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

Astrophyllum insigne can spread to about 2 ft (0.5 m) and reach about 2 ft (0 m) tall. Space plants about 2 ft (0.5 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 plant spacing calculator.

Prune Astrophyllum insigne 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 shrub in one year.

Astrophyllum insigne 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.

Astrophyllum insigne can be propagated through offsets, seeds. Similar propagation techniques also apply to astrophyllum seligeri plant care, which shares the same genus.

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

Astrophyllum insigne is susceptible to spider mites, mealybugs, 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.

Astrophyllum insigne grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Astrophyllum insigne is native to western North America. In cooler regions, grow Astrophyllum insigne as a houseplant or bring it indoors before the first frost.