Field Oxytropis Plant Care

Field Oxytropis (Oxytropis campestris) belongs to the Fabaceae family within the Oxytropis genus. Field Oxytropis is native to Northern Europe, the mountains of Central & Southern Europe, the Northwestern United States and all of Canada, sometimes grown as an ornamental plant. Field Oxytropis is also known as Yellow Oxytropis, Lowland Oxytropis.

Field Oxytropis displays a low rosette, spreading growth habit, reaching up to tall with a spread of approximately 1 ft. Field Oxytropis produces showy spikes of pea-like flowers in various colors.

Leaf size: approximately 3 inches.

Water a young or newly planted Field Oxytropis every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established trees mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Field Oxytropis thrives in full sun to partial shade.

Oxytropis campestris tolerates temperatures of 60–80°F. Field Oxytropis prefers humidity levels of 40–60%.

Well-draining sandy loam with added organic matter. Good drainage is essential for Field Oxytropis to prevent waterlogging, which leads to root rot and fungal issues.

Feed Field Oxytropis every 2 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established trees 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. Avoid low spots where water collects after rain.

Field Oxytropis is suited to USDA Zone 3a – 7b.

Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.

Field Oxytropis can spread to about 1 ft (0.3 m). 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 tree spacing calculator.

Prune Field Oxytropis 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 tree in one year.

Field Oxytropis is hardy down to USDA zone 3a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown trees need extra protection: roots in a pot freeze much more easily than roots in the ground.

Field Oxytropis can be propagated through seeds, division of clumps. Similar propagation techniques also apply to purple loco plant care, which shares the same genus.

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

Field Oxytropis is susceptible to aphids, leafhoppers, 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.

Field Oxytropis grows outdoors in USDA Zone 3a – 7b. It survives winters down to planting zone 3a. Field Oxytropis is native to Northern Europe, the mountains of Central & Southern Europe, the Northwestern United States and all of Canada, sometimes grown as an ornamental plant.