Tomatomania claims to be the world’s largest (and most fun) heirloom tomato seedling sale and gardening info event open to the public for free, coming to Cornerstone Saturday and Sunday, April 22 and 23. It’s basically a traveling tomato roadshow.

Tomatomania boasts of showcasing the country’s largest selection of heirloom and hybrid tomatoes – from the newest “blue” tomato to the popular red beefsteaks.

Besides plants and tomato supplies, there will be classes led by gardening experts covering a wide range of topics and questions.

For Earth Day on Saturday, Tomatomania joins with Sunset magazine to offer an “Earth Day Garden Education Series.”

Four classes are scheduled on Saturday including Tomatomania owner Scott Daigre who will cover growing tomatoes, Brad Gates will chat about his new tomato varieties, Eva Reutinger of Bright View Landscapes will demystify the raised garden bed, and Michael Irvine of Homestead Gardens, designer and maintenance team for the Sunset Test Gardens, will give a tour of this project at Cornerstone.

Don’t forget that Sonoma Mission Gardens on Craig Avenue and Wine Country Garden Center on Broadway offer as many, if not more, varieties of tomatoes that are specially selected to survive and produce in Sonoma’s climate and micro-climates and they are here for us year round.