While northern Outagamie County is in zone 4b of the USDA Hardiness Zone map, the southern region of the County has been designated zone 5a. The last spring killing frost in southern Outagamie County typically occurs from May 3-9, while those in the northern region of the county typically see the last frost from May 10-16. With a growing season of barely 5 months, there isn’t much time to waste. The first fall frost in northern Outagamie County typically occurs from September 27-October 3, while the southern region of the county will typically not see its first frost until October 4-10. Many (those of us who neglected to get our own seeds started) will be looking for seedlings to get a head start, rather than planting seeds. We’d recommend planning to visit the annual Outagamie County Master Gardeners plant sale early on Saturday, May 16th.
posted by Sue