Heterandrous Navarretia Plant Care

Heterandrous Navarretia (Navarretia heterandra) belongs to the Polemoniaceae family within the Navarretia genus.

Heterandrous Navarretia displays a low-growing mat-forming growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Heterandrous Navarretia produces small colorful tubular flowers in clusters.

Leaf size: approximately 1 inches.

Water a young or newly planted Heterandrous Navarretia every 7–10 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.

Heterandrous Navarretia thrives in full sun to partial shade.

Navarretia heterandra tolerates temperatures of 50–80°F. Heterandrous Navarretia prefers humidity levels of 40–60%.

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

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.

Heterandrous Navarretia is suited to USDA Zone 12a.

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.

Heterandrous Navarretia can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 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 Heterandrous Navarretia 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.

Heterandrous Navarretia 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.

Heterandrous Navarretia can be propagated through seeds. Similar propagation techniques also apply to pine-brush plant care, which shares the same genus.

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Heterandrous Navarretia 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.

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