'Julia Phelps' is considered one of the most beautiful lilac hybrids. It has profuse  intense  dark blue flowers tiny crinkly dark green leaves. Julia Phelps grows 6 to 8 ft tall and about as wide.  It is very drought tolerant and will survive with a few spring or winter waterings inland and no extra water on the coast.Hybrid random; origin = seedling 91945) Leonard Coates Nsy  C. papillosus var. roweanus x C. impressus?; intro Saratoga Horticultural Foundation 1951