This week’s South Whidbey Tilth Farmers Market includes a treat for Whidbey gardeners.

Brian Kenney of Deep Harvest Farm will be teaching market-goers how to save a garden’s seeds from year to year. The class is 1 p.m. on Sunday, Aug. 8, at the market, 2812 Thompson Road in Langley.

There is no limit to the number of people who can attend the free class, nor do participants need to register ahead of time, though organizers do recommend attendees bring their own chairs.

Saving seeds produced in a garden can improve plants’ adaptability to the growing climate over time, according to a press release on the class.

Kenney said the class will cover the benefits of seed saving, which include promoting biodiversity, developing regionally adapted seeds and supporting food security. He will also go over different categories of seed plants and how to manage each of them.

“We’ll discuss some general growing strategies and processing methods (threshing, winnowing) and also some good seed crops to start with for beginners,” he said in an email to the Record.

This week’s farmers market won’t be the only opportunity to learn seed saving skills. The market will host three more classes through September. The dates of these classes will be available at southwhidbeytilth.org as they are finalized.