I am happy to be corrected but I believe that most tulips will not persist in acid soil and that the addition of a little lime may make a difference. What is your soil like Mary? Peter (UK) On Mon, Mar 5, 2012 at 3:19 PM, Mary Sue Ittner <msittner@mcn.org> wrote: > Hi, > > In Northern California most of the species I have planted out don't > last very long and if I get them to bloom in previous years it has > only been a couple of times. >