Thanks, Frilly. And the lilies smell wonderful right now!
Teresa, It won't take you long at all to get a clumpt like the picture. I believe I bought these in the fall of 2012 (may have been spring of 2013) . I bought the bulbs at Walmart or Menard's and I bought 10 bulbs. A couple of them did not come up last year, but a couple of them bloomed on short stalks.
This year they really took off and are about 4 feet high and have multiplied a little. My husband loves them because he says they smell like vanilla. I caught a hint of vanilla once, but mostly they have an almost overwhelming sweet smell.