Harold and Virginia Vadset of Sequim Prairie Star host a talk about the uses and benefits for gardeners of “tea” made from worm castings, at Nash’s Farm Store, 4681 Sequim-Dungeness Way, starting at 4:30 p.m. Wednesday, March 16.

The talk is free and open to the public.

The Vadsets have been making their worm tea, which can be used as a soil amendment or a foliar feed, since coming to Sequim 14 years ago.

They base their product on the research of Dr. Clive Edwards of Ohio State University, who increased plant growth by 30 percent using vermicompost (worm castings).