Plantago princeps Plant Care

Plantago princeps (Plantago princeps) belongs to the Plantaginaceae family within the Plantago genus. Plantago princeps is native to Hawaii.

Plantago princeps displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Plantago princeps produces tiny, inconspicuous flowers on slender spikes.

Leaf size: approximately 3 inches.

Water a young or newly planted Plantago princeps every 3–7 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.

Plantago princeps thrives in full sun to part shade.

Plantago princeps tolerates temperatures of 50–80°F. Plantago princeps prefers humidity levels of 40–70%.

Well-draining loamy soil with good organic content. Good drainage is essential for Plantago princeps to prevent waterlogging, which leads to root rot and fungal issues.

Feed Plantago princeps 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 part shade and well-draining loamy soil with good organic content. Avoid low spots where water collects after rain.

Plantago princeps 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.

Plantago princeps 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 Plantago princeps 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.

Plantago princeps 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.

Plantago princeps can be propagated through seeds, division of clumps. Similar propagation techniques also apply to african plantain plant care, which shares the same genus.

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Plantago princeps is susceptible to aphids, snails, slugs. 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.

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