Hmm...I'm thinking that would be in April (?) Around our house, there's lots in April: bearded iris, phlox, Solomon's Seal, bleeding heart, dianthus, and peony. Also, I planned for a wide range of time with daffodils by purchasing bulbs by "early, mid, or late season" (and the various combinations of those). So, I had some blooming in early April ("Seventeen Sisters" aka "Avalanche" comes to mind - one of my all favorites!) I order them from Brent and Becky's Bulb in eastern Virgina and they have been very healthy and true to description for the most part in terms of bloom times.

Tulips come in there somewhere.