Bryan McAllister’s personal reference notebook
July 30, 2026Short & citedBlog
Civic Viewpoint.
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Kept by Bryan McAllister — short guides, clear facts, and the Canadian angle when it matters.
Field Notes • Plant

Sorrel

Sorrel is a common name used for several sour-tasting leafy plants, especially species in the genus *Rumex* such as garden sorrel (*Rumex acetosa*).

Updated July 30, 20261 min readCited sources

Sorrel is a hardy perennial herb with sour, lemony leaves, commonly referring to *Rumex acetosa* in gardens and kitchens.

What it is

Sorrel is a leafy herb in the buckwheat family (Polygonaceae), native to Eurasia. Its arrow-shaped leaves contain oxalic acid, giving them a tart flavour. It grows as a perennial in grasslands, gardens, and disturbed sites, and has naturalized in parts of North America.

Why it matters

Sorrel is valued as a culinary herb and vegetable, used raw in salads or cooked in soups, sauces, and omelets. Its sour taste adds a unique lemony note. In Canada, it is a hardy perennial suitable for zone 4 gardens, making it a practical choice for home growers and foragers.

Key details

Young leaves are best eaten raw; mature leaves are often cooked. The oxalic acid in sorrel can affect calcium absorption, so those prone to kidney stones should moderate intake. It is easy to grow as a cool-season herb with a long harvest season.

In short

  • Sorrel is a sour-tasting perennial herb, usually *Rumex acetosa*.
  • Its tart flavour comes from oxalic acid.
  • Used raw in salads or cooked in soups and sauces.
  • Hardy in Canadian zone 4 gardens.
Canadian angle

Sorrel is grown by Canadian gardeners as a hardy perennial herb, and some sources note it can be hardy into Canadian zone 4. It is also relevant to Canadian foraging and culinary gardening interests.

Quick questions

What does sorrel taste like?
Sorrel has a tart, lemony, or sour taste, largely due to oxalic acid in the leaves.
Is sorrel a perennial?
Yes. Garden sorrel is commonly described as a perennial herb.
How is sorrel used in cooking?
It is used raw in salads and as a garnish, or cooked in soups, sauces, omelets, and other dishes.

Sources

  1. Encyclopaedia Britannica — https://www.britannica.com/plant/sorrel
    Supports: General definition of sorrel, family, flavour, and culinary uses.
  2. Wikipedia — https://en.wikipedia.org/wiki/Sorrel
    Supports: Scientific name, common names, family, perennial habit, and native range.
  3. University of California Agriculture and Natural Resources — https://ucanr.edu/site/uc-master-gardeners-santa-clara-county/sorrel
    Supports: Varieties, culinary preference, and leaf flavour.
  4. The Wildlife Trusts — https://www.wildlifetrusts.org/wildlife-explorer/wildflowers/common-sorrel
    Supports: Habitat, appearance, taste, and traditional use.
  5. Royal Horticultural Society — https://www.rhs.org.uk/herbs/sorrel/grow-your-own
    Supports: Growing habit, harvesting season, and culinary use.
  6. Philly Orchard Project — https://www.phillyorchards.org/wp-content/uploads/2020/01/Sorrel-Info-Sheet.pdf
    Supports: Plant family, nutritional notes, oxalic acid caution, and cool-season growth.
  7. Food Garden Life — https://www.foodgardenlife.com/learn/grow-sorrel
    Supports: Hardiness in Canadian zone 4 and perennial growth habit.