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Elephant Garlic need autumn planting and looong growing season ahead for it to make into large bulb. Ellen's option 3 does sound tempting to me too...BUT...if you don't try, you won't learn. Stick few cloves into ground and see what happens.. ;) I suspect they will grow a little bit..not making into bulbs but the cloves will swell up bit.If that happens..when the tops start dying and they need lifting..you can always plant them again in the 'proper' planting time. At least your cloves will stay alive..if you just leave them, I doubt they will survive alive or in good enough condition for planting until autumn.
My elephant garlic, I thought, was lifted last autumn and gradually eaten over the winter.But some have come up, ENORMOUS, in the bed where they were but I missed them.....so they have been growing since last year's spring or even the autumn before that (sorry, can't remember). Around them are broad beans sown in autumn last year.I am leaving them there to see how huge they get. The BBs don't seem to be put off by them.Something I enjoy is watching allotment neighbours pulling their garlics while I pull the elephants. So far, they are astonished by the difference in size. I love it that they have accepted elephant cloves to try out.