valvata kiwi

Survives zone 6 through 9

Harvest calendar

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

⚠ Only marginally a fruit species in practice — its small (~9g), orange-when-ripe berries (reportedly chili-flavoured when unripe) are incidental to its two real uses: as a traditional Chinese medicine source (the root, 'Mao-Ren-Shen', studied for antitumor and liver-protective compounds) and, more recently, as breeding/rootstock material prized for exceptional flood tolerance in commercial kiwifruit grafting. Garden-cultivation specifics (propagation, feeding, time to fruit) are genuinely sparse in the literature. Closely allied to A. macrosperma; some treatments merge the two.

Hardiness

Zone 6–9

Habit

Vine

Edible part

Fruit

Ripens

Autumn

Mature size

Vine 3–6 m; strong trellis

Light

Full sun to partial

Soil pH

5.0–6.5 (slightly acid)

Environment

Montane forest

Native range

Southern China, south to Hubei; open woodland and thickets, mountain valley bottoms around 1,000 m

Status

Wild

Years to fruit

3–5 yrs

Growth speed

Very fast — several metres of new growth a season on an established vine

Spacing

400 cm (157 in) apart — about 16 m² (172 sq ft) per plant

Leaf shape

Broadly to narrowly ovate, 5–13 cm, membranous to papery, smooth on both surfaces, finely to coarsely toothed margins.

Root system

Fleshy and shallow like the rest of the genus, but with a genuine difference that matters: this is the waterlogging-tolerant Actinidia, holding high pyruvate decarboxylase and alcohol dehydrogenase activity under flooding where other species collapse. It is used as a rootstock for that reason, and is the one kiwi worth trying on ground that lies wet.

Fruit description

Ovoid fruit, orange when mature, 2–2.5 cm long, smooth skin with a small beaked tip, numerous small seeds eaten with the flesh; unripe fruit is notably bitter, astringent and peppery.

Propagation

Semi-ripe or softwood cuttings under mist, or grafting for named cultivars. Seed germinates readily but is close to useless for a crop: sex is not visible until the vine first flowers, several years on, so a seedling batch is a lottery of males and females.

Pollination

DIOECIOUS — needs male and female plants

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.