I have several lillies planted in my gardens, however, I know little about them. It seems that in the first two weeks of June I have very little blooming in my yard. However, I've noticed that some of my neighbors have a great display of lillis blooming now. The ones I have bloom a bit later...like the end of June. I'm looking for low growing (18-24") varieties that bloom in mid to late spring. Thanks for any suggestions.