🎃 Red Kuri Squash

Cucurbita maxima ‘Red Kuri’
The teardrop squash that tastes like roasted chestnuts: sweet, dry, and glowing orange-red – a maxima that earns its pantry space.
Sun
Full sun, 8+ hours
Days to harvest
About 90-100 days from seed
Spacing
Hills 5-6 feet apart; vines run 10-15 feet
Soil pH
6.0-7.0, fertile and well-drained
Zones
Warm-season annual; in Florida, plant fall for winter squash and pumpkins – spring in cooler zones, fall in Florida to dodge peak borer and mildew pressure

What it looks like

Cucurbita maxima, C. moschata, and C. pepo (winter types) (species)
Cucurbita maxima, C. moschata, and C. pepo (winter types), the species (no verified photo of ‘Red Kuri Squash’ itself exists). Andahuaylas Peru- Cucurbita maxima Zapollo-Macre seller. Photo: Thayne Tuason, CC BY 4.0.
Cucurbita maxima, C. moschata, and C. pepo (winter types) (species)
Cucurbita maxima, C. moschata, and C. pepo (winter types), the species (no verified photo of ‘Red Kuri Squash’ itself exists). Pumpkin. Photo: User:Nino Barbieri, CC BY 2.5.
Cucurbita maxima, C. moschata, and C. pepo (winter types) (species)
Cucurbita maxima, C. moschata, and C. pepo (winter types), the species (no verified photo of ‘Red Kuri Squash’ itself exists). Squash. Photo: George Chernilevsky, Public domain.

Why this variety

Red Kuri is the squash that converts people who think they do not like squash. It is a teardrop-shaped, vivid orange-red maxima from Japan, weighing 5-8 pounds, with thick, dry, sweet flesh that roasts into something between chestnut and sweet potato. No stringiness, no wateriness – just dense, nutty, almost fluffy flesh that holds its shape in soup and curry.

It is also a storage champion. A properly cured Red Kuri keeps for months in a cool, dry spot, and its flavor actually improves after a few weeks off the vine as starches convert to sugars. That is the winter squash bargain in its purest form: plant it once, ignore it all summer, eat it all winter. In Florida, give it the fall slot, where cooler nights and lower disease pressure let a long-season maxima finish properly.

How to grow

Direct-sow 1 inch deep after all frost danger, when soil is at least 65-70 degrees, in hills of 3-4 seeds thinned to 2 plants. Red Kuri Squash is a heavy feeder with an enormous root system: dig compost deep into the hill before planting, not just on top, and work a generous handful of worm castings into each hill. Vines will cover serious ground – give them room, or train them up a strong trellis with fruit slung in netting where the fruit size allows.

Separate male and female flowers appear on the same plant, and the females (with a tiny squash behind the petals) need bee visits to set fruit. Unpollinated baby squash yellow and drop at a couple of inches long; hand-pollinate in the morning if bees are scarce. In Florida, plant winter squash and pumpkins in fall for the best run: fall planting lets fruit mature in cooler, drier air and cure beautifully. Powdery mildew usually arrives late in the season – by then the fruit is mostly made, so do not panic, just keep watering at the base.

One Florida rule matters more than any other for squash: know your species. Moschata types (butternut, calabaza, Seminole pumpkin) have solid stems that squash vine borers struggle to enter, while pepo and maxima types have hollow stems the borer loves. This is a maxima type with hollow stems, so borer protection matters in Florida – row cover early, or plant in fall when borer pressure drops. Row cover until flowering prevents egg-laying, and it is the single most effective borer defense a home gardener owns.

Water & feeding

Deep watering, 1-2 inches a week, at the base, in the morning – never overhead, which spreads mildew. A generous handful of worm castings in each planting hill plus a mid-season side-dress feeds the long season steadily; castings carry a low burn risk, which matters when one plant is expected to produce for months. Mulch once plants are established, keeping mulch a few inches from the stem so the crown stays dry.

As fruit matures, ease back slightly on water to help rinds harden and cure. A squash that goes into storage with a soft rind, a wet stem scar, or a bruise will rot from that spot outward, and one rotting squash in a pile can take its neighbors with it. Feed the soil, not just the plant: compost and castings build the crumbly, living soil structure that holds water in sandy Florida soil without waterlogging it.

Common problems

  • Squash vine borer (plant wilts despite wet soil): slit the stem, remove the grub, bury the stem section so it re-roots; row cover until flowering prevents egg-laying in the first place.
  • Squash bugs (bronze eggs under leaves, wilting vines): hand-pick eggs daily and use boards as overnight traps, checking underneath each morning.
  • Powdery mildew (white dusty coating): improve airflow, water at soil level, and give vines the spacing they were promised. It usually arrives late; early varieties outrun it.
  • Pickleworm and melonworm: caterpillars that bore into fruit and chew leaves in Florida gardens. Row cover until flowering, hand-pick, and use Bt on caterpillars if pressure is heavy.
  • Poor fruit set: usually missing pollinators or heat stress. Hand-pollinate in the morning, keep water even, and remember that the first flush of male flowers is normal – females follow.
  • Soft or rotting stored fruit: harvested too early, cured too briefly, or stored wet. Cure 10-14 days warm and dry, keep a stub of stem attached, and store cool, dry, and uncrowded.

Harvest

Wait until the rind is hard (a fingernail does not dent it), the stem is dry and corky, and the color is fully developed, then cut with a few inches of stem attached – never carry it by the stem. Cure 10-14 days in a warm, dry spot, then store cool and dry for months; flavor peaks a few weeks after harvest.

Kitchen note: Roast it halved with butter and salt, no peeling needed if the skin is tender after roasting, or blend it into soup with ginger and coconut milk. Its dry flesh also makes a pie filling that sets firm instead of weeping.

Nerdy fact: Red Kuri belongs to Cucurbita maxima, the species that also gives us hubbards and kabochas – and maxima squash are the ones whose ancestors were domesticated in South America, where their thick, dry flesh was bred for storage through long winters. The teardrop shape is not decoration: it is the fruit’s way of packing maximum flesh around a small seed cavity.

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Saving seeds

Red Kuri is the squash that converts people who think they do not like squash. It is a teardrop-shaped, vivid orange-red maxima from Japan, weighing 5-8 pounds, with thick, dry, sweet flesh that roasts into something between chestnut and sweet potato. No stringiness, no wateriness — just dense, nutty, almost fluffy flesh that holds its shape in soup and curry. It is also a storage champion. A properly cured Red Kuri keeps for months in a cool, dry spot, and its flavor actually improves after a few weeks off the vine as starches convert to sugars. As an open-pollinated winter squash it comes true from seed: direct-sow 1 inch deep after all frost danger, when soil is at least 65-70 degrees, in hills of 3-4 seeds thinned to 2 plants. Red Kuri Squash is a heavy feeder with an enormous root system: dig compost deep into the hill before planting, not just on top, and work a generous handful of worm castings into each hill. The full method is in the Saving seeds section of the Winter Squash guide.