What did victory gardens do

Victory gardens were meant to be a way for citizens to support the war efforts by growing their own food.

Explanation:

"Victory Gardens. First promoted during World War I, war gardening, or victory gardens, provided American citizens an opportunity to assist with the war effort. Americans were encouraged to produce their own food, planting vegetable gardens in their backyards, churchyards, city parks, and playgrounds."

-virginiahistory.org

Victory gardens, also called war gardens or food gardens for defense, were vegetable, fruit, and herb gardens planted at private residences and public parks in the United States, United Kingdom, Canada, Australia and Germany during World War I and World War II.

Explanation:

it increase by 12% a year from 1812-1820