Green Striped Cushaw Squash BIO (Cucurbita argyrosperma)

Green Striped Cushaw Squash (Cucurbita argyrosperma): this is an ancient cultivar of Mesoamerican origin that, over time, became a central part of rural agriculture in the southern United States. Recognised for its significant historical and cultural value, this variety has been included in the Slow Food Ark of Taste, a project dedicated to protecting and promoting traditional agricultural products at risk of disappearing due to the spread of commercial hybrid seed.

The fruit is distinguished by its bottle-shaped or swan-neck form, often curved and with a swollen base, and reaches weights of between five and ten kilograms. The skin is smooth and leathery, with pronounced dark-green stripes over a creamy-white background. The plant, belonging to the Cucurbitaceae family, develops a very vigorous trailing and climbing habit and requires ample space for the proper development of its long vines.

In the kitchen, the flesh, ranging from pale yellow to light orange, differs markedly from that of common winter-storage squash. Its texture is fine, compact and completely free of fibrousness, with a pleasant, moderately sweet flavour characterised by earthy notes. Thanks to this distinctive organoleptic profile, Green Striped Cushaw plays an important role in Creole, Cajun and Appalachian cuisine.

It is the preferred ingredient for the traditional Cushaw pie, an autumn dessert with an exceptionally silky and light texture. Beyond baked goods, the flesh is widely used to prepare spiced pumpkin butter, preserves, compotes and jams. In savoury dishes, it is well suited to enriching meat stews and soups, as well as for fillings in empanadas and traditional fresh pasta.

The large seeds, a distinctive characteristic of the species argyrosperma, have traditionally been collected, washed and roasted to provide a protein-rich food, or used for oil extraction and to thicken traditional Mexican sauces such as pipián.

In the field, the cultivar is noted for its exceptional hardiness and proven ability to tolerate summer heat and prolonged periods of drought. An important agronomic advantage is its natural tolerance to attacks by squash vine borers and other pests that frequently affect other cucurbit species. It is sensitive to waterlogging and performs best in well-drained soils.

Harvest takes place in late autumn. A short period of curing in the sun helps harden the rind, an important step for this species, which does not have a particularly long storage life. For storage, the fruits should be kept in dry, well-ventilated conditions.

For further information:

https://www.fondazioneslowfood.com/it/arca-del-gusto-slow-food/zucca-green-striped-cushaw/