Sand Jointweed Plant Care

Sand Jointweed (Polygonella myriophylla) belongs to the Polygonaceae family within the Polygonella genus. Sand Jointweed is native to Florida in the United States.

Sand Jointweed displays a low spreading groundcover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1.5 ft. Sand Jointweed produces small clusters of pink or white flowers.

Leaf size: approximately 2 inches.

Water a young or newly planted Sand Jointweed 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.

Sand Jointweed thrives in full sun to partial shade.

Polygonella myriophylla tolerates temperatures of 50–80°F. Sand Jointweed prefers humidity levels of 40–70%.

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

Feed Sand Jointweed 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 soil with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Sand Jointweed 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.

Sand Jointweed can spread to about 2 ft (0.5 m) and reach about 1 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 Sand Jointweed 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.

Sand Jointweed 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.

Sand Jointweed can be propagated through seeds, division of root ball. Similar propagation techniques also apply to american jointweed plant care, which shares the same genus.

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

Sand Jointweed is susceptible to aphids, spider mites, leaf miners. 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.

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