Cuphea gaumeri Plant Care

Cuphea gaumeri (Cuphea gaumeri) belongs to the Lythraceae family within the Cuphea genus.

Cuphea gaumeri displays a compact, mounding habit growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Cuphea gaumeri produces tubular flowers in shades of red, purple, or pink.

Leaf size: approximately 3 inches.

Water a young or newly planted Cuphea gaumeri every 4–7 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.

Cuphea gaumeri thrives in full sun to partial shade.

Cuphea gaumeri tolerates temperatures of 60–80°F. Cuphea gaumeri prefers humidity levels of 40–60%.

Well-draining, slightly acidic soil with added organic matter like compost or peat moss. Good drainage is essential for Cuphea gaumeri to prevent waterlogging, which leads to root rot and fungal issues.

Feed Cuphea gaumeri 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 full sun to partial shade and well-draining, slightly acidic soil with added organic matter like compost or peat moss. Avoid low spots where water collects after rain.

Cuphea gaumeri 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.

Cuphea gaumeri 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 Cuphea gaumeri 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.

Cuphea gaumeri 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.

Cuphea gaumeri can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to firecracker plant plant care, which shares the same genus.

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

Cuphea gaumeri is susceptible to aphids, spider mites, whiteflies. 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.

Cuphea gaumeri grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Cuphea gaumeri as a houseplant or bring it indoors before the first frost.