Parry's False Sunflower Plant Care

Parry's False Sunflower (Helianthella parryi) belongs to the Asteraceae family within the Helianthella genus.

Parry's False Sunflower displays a low rosette, clumping growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Parry's False Sunflower produces small yellow daisy-like flowers in clusters.

Leaf size: approximately 2 inches.

Water a young or newly planted Parry's False Sunflower every 7–14 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.

Parry's False Sunflower thrives in full sun to partial shade.

Helianthella parryi tolerates temperatures of 50–80°F. Parry's False Sunflower prefers humidity levels of 40–70%.

Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Parry's False Sunflower to prevent waterlogging, which leads to root rot and fungal issues.

Feed Parry's False Sunflower 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 sandy loam with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Parry's False Sunflower 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.

Parry's False Sunflower 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 Parry's False Sunflower 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.

Parry's False Sunflower 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.

Parry's False Sunflower can be propagated through seeds, division of clumps. Similar propagation techniques also apply to reports of explorations and surveys: to ascertain the most practicable and economical route for a railroad from the mississippi river to the pacific ocean, made under the direction of the secretary of war plant care, which shares the same genus.

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Parry's False Sunflower is susceptible to aphids, spider mites, powdery mildew. 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.

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