Alliums in general like well drained soil...yes, they love water, but it can't sit there (or below the surface) or the bulbs will rot. This year has been hard on alliums, spring wasn't wet enough and then this hot and wet weather has made them do some strange things (like bolt when they shouldn't, which you'd be thrilled with, or bolt too fast, leading to smaller flowers). I'm not a fan of "fertilizers" that aren't from the rear end of an animal I recognize, so I'd forego Miracle Grow, if it were me. Normally, gigantic Globe Alliums come up in early June without any help; and if not June then July. Did you weed? You need to plant in mid October and cut back any growth after your first snowfall, to ensure they don't stress die in the fall.

Thanks for your tips sturgeonguy, much appreciated.

Yes I did weed! I will try with alliums again in October and let you know how they grow!