Magic Cushaw Squash: Growing the Georgia Swamp Moschata in Kansas

Magic Cushaw was not bred by anyone. It was found growing in a Georgia swamp, and the two farms that carried it forward have kept it going for more than a decade because, in their words, it always pulls through. That is a good introduction for a Kansas gardener. It is a Cucurbita moschata, open-pollinated, with a long season and big vines, and it hands you fruit anywhere from 5 to 30 pounds in a mix of shapes: long-necked cushaws, round and oval squash, and flat cheese-type pumpkins, mostly tan, some green. The flesh is bright orange and sweet under a thin, tender skin.

What Is Magic Cushaw?

Magic Cushaw is an open-pollinated Cucurbita moschata stewarded in Georgia and released through the seed trade only recently. Unlike a named cultivar that has been selected to one shape for decades, it is still a population. Expect variety within a single planting: most plants set the long crookneck fruit the name suggests, but you will also see round, oval, and cheese-wheel shapes, and sizes that run from a 5 pound single squash to 30 pound giants. Skin is mostly tan with the occasional green fruit. What is consistent is the inside: bright orange, sweet, fine-textured flesh that the growers who found it now use as their only winter squash.

The name deserves a note. The Green Striped Cushaw that Southern gardeners have grown for two centuries is Cucurbita argyrosperma, a different species. Magic Cushaw is a true moschata, the same species as butternut, Seminole, and Long Island Cheese. That matters for two reasons: it carries the moschata borer resistance, and it will cross with your other moschata squash but not with a Green Striped Cushaw planted beside it.

Why It Fits Zone 6b Kansas

Vine Borer Resistance

The squash vine borer (Melittia cucurbitae) needs a soft, hollow stem to tunnel. Moschata squash grow dense, solid stems that borers rarely get through. K-State's squash vine borer management guide (MF3309) lists resistant species as the first line of defense, and Magic Cushaw is that species. The growers who stewarded it describe it as resistant to most of what troubles a squash patch. We take that as a report from Georgia, not a promise for Kansas; resistant is not immune, so scout the stem bases in June and July.

Heat, Humidity, and a Long Season

This squash was selected by a swamp, then by farms in the Georgia heat. Kansas July and August will not bother it. It needs about 110 days, so the calendar is the constraint: sow in early May and it finishes in late August or early September, with time to cure before the first Zone 6b frost in mid to late October.

A Storage Squash That Feeds a Crowd

Fruit this size is a pantry crop. One 15 pound cushaw is several pies, a batch of squash butter, and a week of roasted wedges. The growers report it stores well, and its moschata parentage backs that up.

How to Grow It in Kansas

Starting Seeds

Direct sow after the last frost once the soil holds 70 F, usually the first or second week of May in Zone 6b. Plant 1 inch deep, 2 to 3 seeds per spot, and thin to the strongest one or two. Moschata seed rots in cold, wet soil, so patience in late April is cheaper than replanting in late May. Transplants are possible if you sow indoors no more than 3 weeks ahead in 4 inch pots and set them out without disturbing the roots, but a variety with this much vigor gains little from the head start.

Spacing

Give it room. These are big, rambling vines carrying heavy fruit. Set plants 4 feet in-row with rows 8 to 10 feet apart, or plant hills 6 to 8 feet apart and let them sprawl. Either way each plant gets 35 to 40 square feet, and a vine carrying 30 pound fruit will use all of it. In a smaller garden, plant it at the edge and run the vines out over a lawn, a driveway margin, or a fence; the fruit is too heavy for most trellises.

Soil and Feeding

Work 2 to 3 inches of compost into each planting spot and aim for pH 6.0 to 6.8. A balanced fertilizer at planting, a light nitrogen side-dress when the vines begin to run, then a lower-nitrogen feed at first flower to push fruit rather than leaf. Mulch once the soil is warm. Give the plants an inch of water a week and more in a heat wave, watering at the base rather than over the leaves.

Days to Maturity and Harvest

Plan on 110 days from direct seed, with some fruit ready a little sooner. Harvest when the rind color has set, the stem is corking and drying, and your thumbnail no longer dents the skin. The skin on this variety is thinner than a Green Striped Cushaw, so handle the fruit gently and cut with 2 inches of stem. Bring everything in before a hard freeze.

Curing and Storage

Cure in a warm, dry, ventilated spot for 7 to 10 days, then store at 50 to 60 F with good air circulation. Plan on the moschata baseline of 4 to 6 months, check the fruit monthly, and use any that soften first. For the full method see how to cure pumpkins and winter squash for long storage.

In the Kitchen

Treat it like a large butternut. The neck of the crookneck fruit is solid flesh with no seeds and peels easily; roast it in wedges, cube it for soup, or bake and puree it for pie and squash butter. The round and cheese-shaped fruit halve and roast like any pumpkin. The flesh is sweet enough that pie needs less sugar than a canned filling.

Saving Seed

Magic Cushaw is open-pollinated, so saved seed comes back true to the population. Because it is a moschata it will cross with butternut, Seminole, Long Island Cheese, Musquee de Provence, and any other moschata within about half a mile, so isolate or hand-pollinate and tape the flowers. It will not cross with Green Striped Cushaw or any pepo or maxima. Since the population is still variable, seed saving is also selection: save from the fruit shapes and sizes you liked best, from more than one plant, and you will slowly shape it to your garden. Read how to save pumpkin seeds for the drying and storage steps.

Related Growing Guides

For the classic Southern cushaw, which is a different species, read the Green Striped Cushaw growing guide. For the species story behind the borer resistance, see what is Cucurbita moschata and why it matters. For other big moschata storage squash, the Musquee de Provence guide and the best storage pumpkins guide cover the winter pantry.

Get the Seeds

Shop Magic Cushaw squash seeds in 10 and 20 seed packets, open-pollinated and non-GMO, packed and shipped from Newton, Kansas. Browse the full Vine Borer Resistant collection for the rest of the moschata family.