Hi Kent,

I see in another post that I said to plant them 4" deep. I'm pretty sure I found/got that info from the net.

The rule of thumb is the bottom of the bulb being at 3 times the height of the bulb.

Planting deeper, may result in fewer blooms, less multiplying, later blooms or maybe even rot in clay soil.
Since you have amended the clay, I would just hope for the best, and maybe note the number of blooms next season. You can then decide if you want or need to lift them a bit next year.

Sue