Vitaceae

Asian wild grape

Vitis flexuosa

Asian wild grape

Photo: Sten Porse — CC BY-SA 3.0 · source

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Survives zone 6 through 9

Harvest calendar

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Best planted in early spring after your last frost, or in fall before the ground freezes, depending on your climate.

Asian wild grape is a minor foraged fruit across China, Japan and Korea — its small, acidic, pea-sized berries are eaten locally and used in traditional medicine — but unlike V. amurensis or V. coignetiae it has not been taken up for breeding or ornamental cultivation to any significant degree.

Hardiness
Zone 6–9
Habit
Vine
Edible part
Fruit
Ripens
Sept–Oct
Mature size
Vine 6–12 m
Light
Full sun
Soil pH
6.0–7.0
Environment
Temperate
Native range
China, Japan and Korea, originally described from Hubei; grows wild in hill and mountain woodlands of central and southern Japan.
Status
Wild
Years to fruit
2–3 yrs
Growth speed
Moderate, to around 8 m.
Spacing
350 cm (138 in) apart — about 12 m² (132 sq ft) per plant
Leaf shape
Small leaves — among the smallest of the Chinese native wild grapevines — round to triangular with a truncated tip, narrow, and unevenly toothed, with a downy leaf stalk.
Root system
Vigorous and deep-rooting, as in most of the Asian wild grapes.
Fruit description
Small, pea-sized, round, dark purple berries with just 1–2 seeds, borne in bunches; distinctly acidic/tart, eaten raw or dried for winter use.
Propagation
By seed after around six weeks of cold stratification sown in a cold frame as soon as ripe, or by hardwood cuttings taken in December-January; layering is also viable.
Pollination
⚠ DIOECIOUS — needs male + female (a vigorous fruitless wild vine is usually a lone male)

The edible parts listed above are a starting point, not a field guide. Identify a plant with certainty — ideally against a local authority — before eating any part of it, and read the full disclaimer. Spotted something wrong? Report it.

Growing guide

Fertilizing. Prefers deep, rich, well-drained loam and grows best on calcareous soils; tolerates humid, hot climates well and needs only routine feeding.

How it spreads. Tendril-climber to about 8 m; a long-lived, adaptable vine that persists and spreads in disturbed woodland edges across its range.

Growing tips. Notably adaptable to humid, hot conditions and long-lived, though somewhat less disease-resistant than its Chinese relatives V. davidii and V. adstricta (V. heyneana); susceptible to honey fungus. Needs a warm sunny spot to ripen fruit and winter-only pruning.

Grow journal

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About the data

Zone figures are typical published ranges — microclimate, drainage and siting shift them by a zone in either direction. Store links are found by an automated search, refreshed every six weeks. Availability is seasonal; stock and prices are not tracked.

Venlo — a reference for cold-hardy edible plants