'Squashes' generally refer to four species of the genus ''Cucurbita'' native to the
New World, also called ''marrows'' depending on variety or the nationality of the speaker. In North America, squash is loosely grouped into
summer squash or
winter squash, as well as autumn squash (another name is cheese squash) depending on whether they are harvested as immature fruits (summer squash) or mature fruits (autumn squash or winter squash).
Gourds are from the same family as squashes. Well known types of squash include the
pumpkin and
courgette.
Archaeological evidence suggests that squash may have been first cultivated in
Mesoamerica some 8,000 to 10,000 years ago
[2][3], but may have been independently cultivated elsewhere, albeit later
[4]. Squash was one of the "
Three Sisters" planted by
Native Americans. The Three Sisters were the three main indigenous plants used for agriculture:
maize (corn),
beans, and squash. These were usually planted together, with the cornstalk providing support for the climbing beans, and shade for the squash. The squash vines provided ground cover to limit weeds. The beans provided
nitrogen fixing for all three crops.
Summer squashes, including young vegetable marrows (such as
zucchini [also known as courgette],
pattypan and
yellow crookneck) are harvested during the growing season, while the skin is still tender and the fruit relatively small, they are consumed almost immediately and require little or no cooking.
Winter squashes (such as
butternut,
Hubbard, buttercup, ambercup,
acorn,
spaghetti squash and
pumpkin) are harvested at maturity, generally the end of summer, cured to further harden the skin, and stored in a cool place for eating later. They generally require longer cooking time than summer squashes. (Note: Although the term ''winter squash'' is used here to differentiate from ''summer squash,'' it is also commonly used as a synonym for ''Cucurbita maxima''.)
The squash fruit is classified as a pepo by botanists, which is a special type of berry with a thick outer wall or rind formed from hypanthium tissue fused to the
exocarp; the fleshy interior is composed of
mesocarp and
endocarp. The pepo, derived from an inferior ovary, is characteristic of the Squash Family (Cucurbitaceae).
In addition to the fruit, other parts of the plant are edible. Squash
seeds can be eaten directly, ground into paste, or (particularly for pumpkins) pressed for
vegetable oil. The
shoots,
leaves, and
tendrils can be eaten as
greens. The blossoms are an important part of native American cooking and are also used in many other parts of the world.
Pollination

Bee pollinating a zucchini squash
As with all other members of the family, the flowers come in pollen-bearing male form, and the ovary-bearing female form, with both forms being present on the plant. Squash has historically been pollinated by the native North American
squash bee ''Peponapis pruinosa'', and related species, but this bee and its relatives have declined, probably due to pesticide sensitivity, and most commercial plantings are pollinated by
European honey bees today. One hive per acre (4,000 m² per hive) is recommended by the US Department of Agriculture. Gardeners with a shortage of bees often have to
hand pollinate. Inadequately pollinated female squash flowers will usually start growing but abort before full development. Many gardeners blame various fungal diseases for the aborted fruit, but the fix proves to be better pollination not
fungicide.
Squash species

Varieties of squash
Four species of the genus ''
Cucurbita'' are called squash or pumpkins rather indiscriminately.
★ ''C. maxima'' includes the large winter squash (such as Hubbard and Banana) and some large pumpkins, and numerous smaller varieties such as Buttercup and Mooregold. On this species the peduncle (fruit stem) is spongy and swollen, not ridged.
★ ''C. pepo'' includes the small pie pumpkins, standard field pumpkins,
acorn squash,
vegetable spaghetti,
zucchini, summer crookneck squash,
pattypan and most other summer squashes.
★ ''C. moschata'' includes
butternut squash, among others
★ ''C. mixta'' includes the cushaw varieties.
While squashes and pumpkins are notorious for producing hybrids when grown within pollinator range of each other, the different species do not naturally hybridize with each other.
You may find this
gallery of squash varieties helpful.
Squashes and cooking
Though considered a vegetable in
cooking, botanically speaking, squash is a fruit (being the receptacle for the plant's seeds), and not a vegetable.
Etymology
The
English word "squash" derives from ''askutasquash'' (literally "a green thing eaten raw"), a word from the
Narragansett language, which was documented by
Roger Williams, the founder of
Rhode Island, in his
1643 publication ''A Key Into the Language of America''. Similar words for squash exist in related languages of the
Algonquian family such as
Massachusett.
Squash and Art
The squash has been an essential crop in the
Andes since the
pre-Columbian Era. The
Moche culture from Northern
Peru made ceramics from earth, water, and fire. This pottery was a sacred substance, formed in significant shapes and used to represent important themes. Squash are represented numerously in Moche ceramics.
[1]
External links
★
Squash Display at Missouri Botanical Garden - Pics of 150 varieties from The Great Pumpkin Patch, Arthur, IL
★
Big-Pumpkins.de This is a very informative site for the new as well as experienced giant pumpkin (Riesenkürbis) and squash grower aimed towards the German speaking audience, though all growers are welcome.
★
The Great Squash Cook-off - Recipe contest for winter squash in Brooklyn, NY
References
1. Berrin, Katherine & Larco Museum. The Spirit of Ancient Peru:Treasures from the Museo Arqueológico Rafael Larco Herrera. New York:Thames and Hudson, 1997.