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July 26, 2026Sources cited
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Spinach

Spinach is a leafy green flowering plant in the species *Spinacia oleracea*, grown and eaten as a vegetable.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Spinach is a leafy green flowering plant in the species *Spinacia oleracea*, grown and eaten as a vegetable. It is native to Central and Western Asia and is cultivated worldwide for its leaves, which can be eaten raw or cooked. Spinach belongs to the family Amaranthaceae and is a cool-season crop that bolts in warm temperatures and long daylight.

Botanical description

Spinach is an annual leafy plant that forms a rosette of dark green leaves. It is classified in the Amaranthaceae family and is grown mainly for its foliage.

Cultivation and growth

Spinach is a cool-season crop that performs best in mild temperatures and can bolt when conditions become warm and days are long. It is typically planted in early spring or in successive sowings for extended harvests.

Culinary uses

The leaves are used as a salad green and as a cooked vegetable. Spinach is also marketed fresh, canned, and frozen.

Origin and spread

Sources describe spinach as originating in ancient Persia or southwest Asia, with later cultivation in China, Europe, and the Americas. Historical timelines vary slightly among sources, but they agree on an Asian origin and later global spread.

Key facts

  • Spinach is a leafy green flowering plant cultivated for its edible leaves.
  • It belongs to the family Amaranthaceae and the species name is *Spinacia oleracea*.
  • Spinach is native to Central and Western Asia.
  • It is a cool-season crop that bolts in warm temperatures and long daylight.
  • Historical accounts place early cultivation in Persia and later spread to Europe and the Americas.
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Canadian context

Spinach is widely available in Canadian grocery stores and is grown in Canadian market-garden and home-garden settings, especially as a cool-weather crop.

Frequently asked questions

What is spinach?
Spinach is a leafy green flowering plant, *Spinacia oleracea*, grown as a vegetable for its edible leaves.
What family does spinach belong to?
Spinach belongs to the family Amaranthaceae.
Where did spinach originate?
Sources place spinach’s origin in Central and Western Asia, often specifically ancient Persia or southwest Asia.
How is spinach usually eaten?
It is eaten fresh in salads or cooked as a vegetable, and it is also sold canned or frozen.
Is spinach a seasonal crop?
Yes. Spinach is a cool-season crop and tends to bolt in warm weather and long days.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Spinach
    Supports: Scientific name, native range, family, and general description.
  2. Encyclopaedia Britannica — https://www.britannica.com/plant/spinach
    Supports: Botanical classification, use as a vegetable, and marketing forms.
  3. University of Wisconsin Extension — https://hort.extension.wisc.edu/articles/spinach-spinacia-oleracea/
    Supports: Origin, historical spread, and cool-season growing conditions.
  4. Missouri Botanical Garden — https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=e819
    Supports: Growth habit, leaf use, and cultivation history.
  5. University of Maryland Extension — https://www.umd.edu/resource/growing-spinach-home-garden
    Supports: Edible flowering plant description and typical height.
  6. University of Massachusetts Amherst — https://www.umass.edu/agriculture-food-environment/vegetable/fact-sheets/spinach
    Supports: Cool-weather crop and culinary use.