Muscadine
Vitis rotundifolia
also called muscadine grape, scuppernong
The grape the South can actually grow: a native vine with thick-skinned bronze or black-purple fruit in loose clusters, musky-sweet and utterly indifferent to the heat and diseases that kill European grapes there.
- Type
- Fruit · Perennial
- Botanical family
- Mixed / other
- Foliage color
- Green
- Flower color
- Purple and violet
- Sunlight
- Full sun
- Watering
- Moderate the first year, little after
- Soil
- Any drained soil; famously easy in the humid South
- Feeding
- All-purpose balanced
- USDA zones
- 7a–10a
- Frost tolerant
- Yes
- Plant out
- at the last spring frost
- First harvest
- 150 days after the last spring frost
- Harvest ends
- at the first fall frost
- Plant spacing
- 9 ft 10 in
- In-row spacing
- 8 ft 2 in
- Between rows
- 11 ft 6 in
- Square-foot density
- Not suited to SFG
- Root system
- Woody, and deeper than the stem suggests
- Working depth
- 24 in–4 ft
- Can reach
- 6.5 ft down where the soil allows
- Spread
- 10–20 ft across, about 1–2× the width of the plant
- Shallowest pot
- 20 in of soil
A vine puts far more below ground than its one thin stem implies, and that is where the alarming vigour comes from. Give the root run depth and drainage at planting; it will forgive almost anything done to it above ground afterwards.
The habit is Muscadine’s own; the figures are what that habit usually comes to at this size, not a measurement of this species. Roots follow the soil either way: a compacted pan, a high water table or heavy clay stops them well short of any of it, and deep open ground lets them go further.
- Cats
- Not on a list we read
- Dogs
- Recorded toxic
Recorded as toxic to dogs by Pet Poison Helpline.
The entry is genus-level in its Latin name but names Muscadine among the fruits it covers, and it names dogs only. The ASPCA plant database has no Vitis row at all.
- When
- From late August into October, berry by berry rather than bunch by bunch.
- What to look for
- Fruit fully colored (bronze gone golden, black gone dusky), aromatic, and releasing from the stem with a light pull. Ripe ones drop, so a sheet under the vine on shaking day works too.
- How to harvest
- Pick single berries into shallow trays. Eat them the southern way: bite, squeeze the sweet pulp in, and discard the thick skin, or keep skins and all for jelly and wine, which is where the color lives.
- How often
- Every few days across six weeks; a mature vine gives 20 kg and does not miss what the possums take.
- Storing the crop
- A week refrigerated, which is why the stores never carry them and the roadside stands do. Prune hard in February: fruit comes on new shoots off last year's wood, and an unpruned vine turns to rope.
- Japanese beetle Japanese beetles lacing the leaves in July
- Immune to the Pierce's disease that kills European grapes in the South, which is the whole reason to plant it
Beneficial predators that hunt this plant's pests — grow their favourite flowers nearby to recruit them. companion plant
- Assassin bug ReduviidaeHunts Japanese beetle
A patient ambusher with a curved beak it drives into whatever it catches — caterpillars, beetles, bugs, and the occasional bee, so count it a generalist rather than a specialist. It will jab a careless finger too, so admire it and leave it be.
- Beneficial nematodes Steinernema & Heterorhabditis spp.Hunts Japanese beetle
Microscopic worms watered onto damp soil that hunt down soil-dwelling grubs and release a bacterium that kills them within days. Timing is the whole thing: warm, damp soil and a small target grub, which means late summer for most of what they are used against.
- Garden birds PasseriformesHunts Japanese beetle
Both things are true: birds strip your currants and a brood of blue tits takes several thousand caterpillars out of one fruit tree in a fortnight. Net what you must and welcome them everywhere else — a nest box near the apples is worth more than a spray.
- Praying mantis MantidaeHunts Japanese beetle
A sit-and-wait ambusher that snatches caterpillars, beetles, and anything else that wanders close — friend and foe alike, so count it a mixed blessing. Tall, structured plantings give it perches and egg-case anchors.
- Spined soldier bug Podisus maculiventrisHunts Japanese beetle
A predatory stink bug — same shield outline as the pest, but with a sharp spine at each shoulder and a beak it uses to spear caterpillars and beetle grubs. Learn the spines before you squash a shield bug, because this one is on your side.
- Tachinid fly TachinidaeHunts Japanese beetle
Bristly, house-fly-lookalike parasitoids that lay eggs on caterpillars, beetle grubs, and earwigs — the maggot consumes the host from within. Adults sip nectar from shallow umbels and daisies.
Scuppernong, the bronze one found before 1810, is still sold and still the state fruit of North Carolina. Pierce's disease makes European wine grapes a short-lived gamble across the Deep South; muscadines are immune, which settles the choice. Some cultivars are female and need a self-fertile pollenizer nearby, so read the tag.
The Cottage Garden Companion — the gardener's herbarium at cottagegardencompanion.com