Ceanothus, or the American Lilac. A beautiful hardy ornamental shrub. Blooms mainly between May and July and has plume-like blue flowers. Varieties available from Leenders Plants: Ceanothus th. Repens, Blue Mound, Puget Blue, Tilden Park and the beautiful Ceanothus Lemon and Lime ® with her gold / yellow leaves. Pot sizes: C2, C5 and C7.5.