The Washington Environmental Council will celebrate Earth Day Saturday, May 4, from 9 a.m. to 2 p.m.

The annual roadside clean-up will run from 9 a.m. to noon, followed by the second annual farmers' festival at its new location at the River Walk Pavilion on School Street from noon to 2 p.m., with cash prizes available for certain categories of trash collected.

The farmers' festival will include visits with local farmers, music, food, the sale of the book "March Farm: Season by Season on a Connecticut Farm," a student art competition and the introduction of the town's new single-stream recycling.

In addition, the Hickory Stick BookShop will offer a book signing with Miriam Rubin, author of "Tomatoes: A Savor the South Cookbook."

Artwork for the competition must be brought to the pavilion Saturday by 9 a.m., with awards consisting of cash prizes being presented at 1 p.m. to the top three artists in each category.