One of my favorite things to do for storytime---I do it every year---is to bring a big basket of fruits and vegetables. Most of them--the tomatoes, corn, squash, peppers, beans, eggplant--are from my garden. A few things, like the carrots and mushrooms, come from the store. It's fun to talk about them, their colors and shapes, and see which ones the kids recognize and which they don't. They know carrots, they don't know eggplant. I was surprised this year when no one recognized green onions.
We did this a couple weeks ago, and then read Growing Colors, by Bruce McMillan, and Up, Down and Around, by Katherine Ayres. Our craft was making veggie prints. They used a variety of cut up veggies as stamps. Very colorful!