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July 30, 2026Short & citedBlog
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Field Notes • Plant

Caper

The caper is the unopened flower bud of the caper bush (*Capparis spinosa*), a perennial plant associated with the Mediterranean region and parts of Asia.

Updated July 30, 20261 min readCited sources

The caper is the unopened flower bud of the caper bush (Capparis spinosa). It is typically cured in salt or brine, giving it a tangy, salty flavour used in cooking.

What it is

Capers are the immature flower buds of the caper bush, a perennial shrub native to the Mediterranean and parts of Asia. They are not seeds or berries. The plant also produces caper berries, which are the fruit — larger, firmer, and seedier than capers.

How it is prepared

After harvest, the buds are dried and cured in salt or pickled in brine. This preservation process develops the familiar briny, tangy flavour and reduces bitterness. The sodium content can be significant due to the curing liquid.

Culinary and nutrition

Capers are used sparingly as a seasoning or garnish in salads, pasta, fish dishes, sauces, and dressings to add brightness and saltiness. They are low in calories but eaten in small amounts, so they are not a major nutrient source. In Canada, they appear in Mediterranean-style dishes and smoked salmon accompaniments.

In short

  • Capers are unopened flower buds, not seeds or berries.
  • They are cured in salt or brine for tangy flavour.
  • Caper berries are the fruit, larger and seedier.
  • High in sodium due to preservation.
Canadian angle

Capers are widely used in Canadian home cooking and restaurant cuisine, especially in Mediterranean-style dishes, smoked salmon accompaniments, and salad dressings.

Quick questions

What are capers?
Capers are the unopened flower buds of the caper bush (Capparis spinosa), usually cured in salt or brine before eating.
What do capers taste like?
They taste briny, salty, tangy, and slightly pungent, with some bitterness reduced by curing.
What is the difference between capers and caper berries?
Capers are the unopened flower buds; caper berries are the fruit of the same plant and are larger, firmer, and usually milder in texture.

Sources

  1. Food Networkhttps://www.foodnetwork.com/how-to/packages/food-network-essentials/what-are-capers
    Supports: Capers are unopened flower buds of *Capparis spinosa*; they are cured in salt or brine; basic flavour and nutritional notes.
  2. Wisconsin Horticulturehttps://hort.extension.wisc.edu/articles/capers-capparis-spinosa/
    Supports: Botanical identification of capers as salted and pickled unopened flower buds of *Capparis spinosa*.
  3. NWTNhttps://noshingwiththenolands.com/what-are-capers-what-do-i-do-with-them/
    Supports: Capers as unopened buds; caper berries as the fruit of the plant.
  4. Simply Recipeshttps://www.simplyrecipes.com/what-are-capers-and-when-to-use-them-6754514
    Supports: Capers are pickled flower buds; common growing regions; preservation methods.
  5. MICHELIN Guidehttps://guide.michelin.com/us/en/article/features/capers-ingredient-cooking
    Supports: Mediterranean and Asian range; culinary uses; sodium considerations; nutrient overview.
  6. Delishhttps://www.delish.com/cooking/a36080251/what-are-capers/
    Supports: Capers are pickled buds; caper berries are the fruit.