Plants that bloom in August in Zone 10 with green flowers

Blue Grama Grass

Short clumping grass with distinctive eyebrow-shaped seed heads thrives in dry soils.

Coleus

Grown for kaleidoscopic foliage, not flowers. Pinch blooms to keep energy in the leaves.

Flowering Tobacco

Tubular flowers that release sweet fragrance at dusk. A cottage garden classic that attracts moths and hummingbirds.

Globe Artichoke

Bold silvery foliage and large thistle-like buds are both decorative and edible.

Sedum

Succulent leaves, tough as nails. Ages to deep crimson in autumn.