Lily bulbs should be planted at a depth of 2 to 3 times the height of the bulb. A 2 inch bulb should be planted with about 4-6 inches of soil above it. Lilies have contractile roots so they'll pull themselves deeper into the soil as they grow. Your lily should be fine.

I'm not "lily savvy" but mine have been growing for 5 summers now and I've noticed that they seem to heave themselves up closer to the surface each summer. I guess due to bulb production. But I've not had any problems with them growing or blooming due to that. But they do start to lean over very badly.

Just FYI so you don't get stuck like I did, once you start producing more stalks from that same bulb, before it gets too crowded, check with the experts on here about when to dig and divide.

I didn't do anything the past 5 years and really regret it. I started out with only 12 bulbs of 6 different varieties and just recently dug them all up due to overcrowding and must now have over 100+ !!! It was a real JOB and not a fun one, at that. Plus, I've no way of knowing what is what as far as color. It's a big mess.

Happy Gardening!
Bonnie

Was it an Asiatic lily? They are known for this. When I first saw this I thought they had heaved too.

New bulbs often grow right on top of the mother bulb, and can keep on stacking up until they break the surface. I dug up one last fall where the bulb had gotten a "tan" from being exposed to the sun; it was a white lily, with burgundy speckles, and the "tan" was rosy looking. I dug it up and found a softball sized clump of bulbs, still with the old stem in the middle and the mother on the bottom. This lily had only been in the ground 3 years! With the old stem still inside it was easy to see where to break them apart. One bulb had become 8.

Some varieties are very prolific, but those are all asiatics. Wish I could sell some of my Asiatic "production". Orientals, Trumpets, their crosses and species grow MUCH slower.