Tomatomaniacs

Tomatoes come in blue, black, purple and green now, thanks to the collection and fierce protection of heirloom seeds. But fancy tomatoes are a bit tougher to grow, and you’ll need a crash course to get good results. From planting to pinching to watering and feeding, and with 150 heirloom varieties to choose from, you’ll be up to your ears in strange — but delicious! — fruit by July.

Saturday and Sunday, April 14-15, 10 a.m. to 4 p.m., Tomatomania at Cornerstone, free.

Family Art Day

Work your way through several craft stations, inspired by the serious art on the walls at the annual culmination of A.R.T.S., the Sonoma Valley Museum of Art’s huge school outreach program. The Valley Vibes youth orchestra will provide the day’s soundtrack, making a beautiful noise at 2 p.m. It’s diverting hands-on fun and free entertainment, an aesthetic two-fer you won’t want to miss.

Saturday, April 14, 11 a.m. to 5 p.m., SVMA, 551 Broadway, svma.org, free.

Campfire

Under the gimlet eye of a rising half-moon, cowboys and cowgirls will gather ‘round the campfire to swap stories and sing songs and roast marshmallows at the Barracks this weekend. It’s a sweet, sly way to make learning seem fun, and a no-budget diversion for the whole family. Saddle up, saunter down, and make a campfire-lit memory.

Saturday, April 14, 5:45-6:45 p.m., Sonoma Barrack Courtyard, parks.ca.gov, 938-9760, free.

Strength in Numbers

Turn your neighborhood into a water-wise, fire-smart, wildlife-friendly place, using the strategies and tools devised by the Sonoma Ecology Center. Their newest program — Neighbors Working Together, or NeWT — helps residents find ways to connect, collaborate, and collectively make change. Break bread with a shared potluck first, and then get after it.

Tuesday, April 17, 5:30-7 p.m., Sonoma Garden Park, 19996 Seventh St. E, sonomaecologycenter.org,free.