Why didn't my new asiatic lilies bloom?

Purchased a little box of asiatic lilies at the Rite Aid store last May and planted them in early June. It is now almost August and I am wondering why they have not bloomed or formed any buds. Any idea why? They were planted in the bottom on 3 pots with about 8-10 inches of well draining soil (I use the black gold bonsai mix), with 1 to 3 bulbs per pot. I water them whenever the soil starts to feel dry (it's been nice summer temperatures here in the Pacific NW). They grew up to 10-14 inches very quickly, and then stopped growing after about 2-3 weeks. After about a month, one plant was getting attacked by aphids on the crown, so I kept spraying soap on it. They came back, so I ended up putting Bayer slow-release fertilizer and pest control sticks into the soil, and I cut off the brownish diseased looking top leaf ends on the affected plant. That seemed to stop the aphids. Now I've got lots of new little baby shoots popping up in all the pots, but still no sign that the larger lilies will ever form buds or continue growing.

Do new boxed lily bulbs sometimes need the first year to regrow/rebuild? I'm wondering if they might have been shelved too long in the store. After my plants die off, should I dig them up out of the pots, and replant at a certain time next year? My mother thinks they would have bloomed if they were allowed to grow in deeper soil.