In all honesty, it's pretty all the way to fall, but since it's a volunteer of course it's in an inconvenient spot. By Midsummer it is totally blocking any light my butterfly garden might get. Aaand, since it volunteered between rocks, I can't effectively harvest the bulb and eat it.
Fortunately it is a wonderful herb for a witch's garden. Obviously, since I can't kill it, it's super easy to grow, and up until the swallowtail caterpillars move in, I use the shiznit outa it, both in the kitchen and magickally. My favorite use is for protection, since I'm totally done with fennel's fertility aspect. Back in the baby days, I drank fennel seed tea by the gallon to keep up the milk production, and I still like to hang a bouquet of fennel fronds over the doors on Midsummer Eve for protection. In all honesty though, there's nothing I can say about fennel that isn't said by the wonderful folks at Herbal Riot, so to learn more hit this link: http://herbalriot.tumblr.com/post/66772309886/magickal-uses-of-fennel
Seriously though, this winter? I'm totally moving that plant.