Caucasian blackcurrant Plant Care

Caucasian blackcurrant (Ribes achurjani) belongs to the Grossulariaceae family within the Ribes genus. Caucasian blackcurrant is native to Caucasus region. Caucasian blackcurrant is also known as Ribes achurjanicum.

Caucasian blackcurrant displays an upright, spreading shrub growth habit, reaching up to 6 ft tall with a spread of approximately 8 ft. Caucasian blackcurrant produces small clusters of greenish to reddish flowers.

Leaf size: approximately 3 inches.

Water a young or newly planted Caucasian blackcurrant every 7–10 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.

Caucasian blackcurrant thrives in full sun to partial shade.

Ribes achurjani tolerates temperatures of 20–90°F. Caucasian blackcurrant prefers humidity levels of 40–70%.

Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Caucasian blackcurrant to prevent waterlogging, which leads to root rot and fungal issues.

Feed Caucasian blackcurrant every 6 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 loamy soil with added compost for nutrients. Avoid low spots where water collects after rain.

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.

Caucasian blackcurrant can spread to about 8 ft (2.4 m) and reach about 6 ft (2 m) tall. Space plants about 8 ft (2.4 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 Caucasian blackcurrant 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.

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.

Caucasian blackcurrant can be propagated through softwood cuttings, hardwood cuttings, layering. Similar propagation techniques also apply to mapleleaf currant plant care, which shares the same genus.

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

Caucasian blackcurrant is susceptible to aphids, currant borer, 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.