Common types include: Common Lilac (Syringa vulgaris): Known for its large, fragrant flower clusters. Japanese Tree Lilac (Syringa reticulata): Features creamy white flowers and a tree-like shape.

The outer covering of the seed must be removed before eating. Drought-tolerant Japanese tree lilacs (Syringa reticulata) produce beautiful white, purple, or pink flowers in spring, says DePaola.