Zygophyllum pachyacanthum Plant Care

Zygophyllum pachyacanthum (Zygophyllum pachyacanthum) belongs to the Zygophyllaceae family within the Zygophyllum genus. Zygophyllum pachyacanthum is native to the Sonoran Desert of northwest Mexico in Sonora and the Lower Colorado River Valley area at the California and Arizona border.

Zygophyllum pachyacanthum displays a low spreading shrub growth habit, reaching up to 1.5 ft tall with a spread of approximately 3 ft. Zygophyllum pachyacanthum produces small, star-shaped flowers in shades of white, yellow, or pink.

Leaf size: approximately 1.5 inches.

Water a young or newly planted Zygophyllum pachyacanthum 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.

Zygophyllum pachyacanthum thrives in full sun to partial shade.

Zygophyllum pachyacanthum tolerates temperatures of 50–90°F. Zygophyllum pachyacanthum prefers humidity levels of 30–60%.

Sandy, well-draining soil with low to moderate fertility, such as a mix of sand, loam, and gravel. Good drainage is essential for Zygophyllum pachyacanthum to prevent waterlogging, which leads to root rot and fungal issues.

Feed Zygophyllum pachyacanthum 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 sandy, well-draining soil with low to moderate fertility, such as a mix of sand, loam, and gravel. Avoid low spots where water collects after rain.

Zygophyllum pachyacanthum 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.

Zygophyllum pachyacanthum can spread to about 3 ft (0.9 m) and reach about 2 ft (0 m) tall. Space plants about 3 ft (0.9 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 Zygophyllum pachyacanthum 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.

Zygophyllum pachyacanthum 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.

Zygophyllum pachyacanthum can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to white bean-caper plant care, which shares the same genus.

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

Zygophyllum pachyacanthum is susceptible to aphids, whiteflies, spider mites. 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.

Zygophyllum pachyacanthum grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Zygophyllum pachyacanthum is native to the Sonoran Desert of northwest Mexico in Sonora and the Lower Colorado River Valley area at the California and Arizona border. In cooler regions, grow Zygophyllum pachyacanthum as a houseplant or bring it indoors before the first frost.