BLACKSBURG, Va., June 1 -- Virginia Polytechnic Institute and State University issued the following news release:

Rebecca Knutson has grown vegetables in her Northern Virginia garden for 20 years. She usually plants a small selection of tried-and-true varieties that she trusts will perform well in her conditions and that she knows her family will eat.

Last summer, Knutson participated in Virginia Cooperative Extension's first-ever home vegetable variety trial, where she had the opportunity to test new vegetable seeds and contribute to a growing body of knowledge that will benefit gardeners across the commonwealth.

"Getting good local gardening information can be very helpful in Virginia because our climates and growing conditions vary ac...