I plan on adding more Greigii and Kaufmanniana tulips this fall.
I am definately getting tulip United States from B&B this year. I wanted it last year but they were not offering it so I am very happy to see it this year. I order from B&B each year anyway so I might as well get it.
Then last year I ordered (100 each) of Greigii division tulips Sundance, Large Copper, March Of Time and Gold West from Dutchgrown.com. For this fall from them I will order Oratorio, Dreamboat, Red Riding Hood and Sweet Lady (100 each).
I thought this would be a good topic for a thread since many people would love to plant truely perennial tulips.