Well, if you smoked leaves then it wouldnt have mattered when you harvested. Leaves have almost nil trichomes, especially fan leaves. Only a few strains get trichomes on the leaves, [excluding budleaves] so that's why you didnt get high - no bud - no trichomes - leaves = no THC.

It's a shame, but hey, i guess we all make mistakes.

But like i said before, i think you mentioned something about it growing back - it wont. Even if you left plant matter on the stem, the frosts and snow and all sorts would have killed it, and i doubt there were any seeds laying around. - it's not a bulb that comes back every year. If only it was