Purple Waffle Plant Plant Care

Purple Waffle Plant (Strobilanthes alternata) belongs to the Acanthaceae family within the Strobilanthes genus. Purple Waffle Plant is native to Java. Purple Waffle Plant is also known as Persian Shield.

Purple Waffle Plant displays an upright, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Purple Waffle Plant produces tubular flowers in shades of blue, purple, or white.

Leaf size: approximately 6 inches.

Water a young or newly planted Purple Waffle Plant 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.

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

Strobilanthes alternata tolerates temperatures of 65–80°F. Purple Waffle Plant prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, fertile soil with added organic matter. Good drainage is essential for Purple Waffle Plant to prevent waterlogging, which leads to root rot and fungal issues.

Feed Purple Waffle Plant every 4 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, fertile soil with added organic matter. Avoid low spots where water collects after rain.

Purple Waffle Plant is suited to USDA Zone 10a – 11b.

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.

Purple Waffle Plant can spread to about 2 ft (0.6 m) and reach about 3 ft (1 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 plant spacing calculator.

Prune Purple Waffle Plant 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.

Purple Waffle Plant is frost-tender (hardy to USDA zone 10). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Purple Waffle Plant can be propagated through stem cuttings, division. Similar propagation techniques also apply to persian shield plant care, which shares the same genus.

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Purple Waffle Plant 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.

Purple Waffle Plant grows outdoors in USDA Zone 10a – 11b. It survives winters down to planting zone 10a. Purple Waffle Plant is native to Java. In cooler regions, grow Purple Waffle Plant as a houseplant or bring it indoors before the first frost.