mustang grape

Photo: Ddal — CC BY-SA 3.0 · source

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.

A tough Texas-to-Louisiana native whose grapes ripen to soft, dark purple berries with thick, tough skin around four heart-shaped seeds — the raw juice is so acidic it can irritate skin and lips, so the fruit is almost always cooked down into jelly, pie filling or wine rather than eaten fresh. ⚠ Know the look-alike: across eastern and central North America, moonseed (Menispermum canadense) twines alongside wild grapes, carries similar dark hanging clusters, and is potentially fatal. Three checks — a grape has 2–4 rounded, pear-shaped seeds while moonseed has ONE flat crescent seed; a grape climbs by forked tendrils and moonseed has none; a grape's leaves are toothed and moonseed's are not. Open a berry and look at the seed before eating any wild grape.

Hardiness

Zone 6–9

Habit

Vine

Edible part

Fruit

Ripens

Sept–Oct

Mature size

Vine 10–20 m

Light

Full sun

Soil pH

6.0–7.0

Environment

Temperate

Native range

South-central US — Arkansas and southern Oklahoma south through Louisiana and Texas, with disjunct populations in Mississippi and Alabama

Status

Wild

Years to fruit

2–3 yrs

Growth speed

Medium, climbing to about 10 m

Spacing

200 cm (79 in) apart — about 4 m² (43 sq ft) per plant

Leaf shape

Broadly lobed, cordate leaves with a dense white, velvet-like tomentum on the underside; young stems and shoots are likewise densely hairy

Root system

Deep and strongly drought-tolerant, adapted to central Texas summers; hard to transplant once established because of it.

Fruit description

Berries about 2 cm (3/4 in) across, ripening from hard green to soft dark purple in relatively small clusters; thick-skinned with roughly four heart-shaped seeds; bitter and very acidic raw, mainly used cooked for jelly, pie filling or wine

Propagation

Seed (fresh-sown, or about 6 weeks cold stratification if stored), hardwood cuttings taken December/January, or layering

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.