Philadelphus microphyllus var. pumilus

Dwarf Little-Leaf Mock Orange is a compact, fragrant-flowering shrub native to California, Nevada, and northwest Mexico, valued for its clusters of white, sweet-scented blossoms in late spring. It thrives in partial shade with well-draining soil and is moderately drought tolerant once established. Prune lightly after flowering to maintain shape and encourage the next season's blooms.