Recently on the Preschoolers and Peace Facebook page, Charlotte asked about nature-based fall ideas and crafts. Charlotte, I so wish I was crafty and ever had an original creative thought, but I don't. So, I rely on several sources who are FAR more crafty and creative than I ;)
Next is Hearts and Trees, created by homeschool graduate Amanda McCoy. Amanda puts out fabulous kits each season, with projects that have won blue ribbons at our county fair. I love her art unit studies because I can't draw if my life depended on it, but my kids can learn some great things from Amanda. Her fall kit is due out soon, and I'll post about it when it is made available.
Last but not at all least for me is Jolanthe's Homeschool Creations. Jolanthe makes the greatest little free printable units for preschoolers. All you need it paper and a printer! Here's her darling fall unit, and she has some other great seasonal units here.
(Egads. Did I really just use the word "darling"? I am sounding more like my mother every day...)