Plants that bloom in March in Zone 9 with yellow flowers

California Poppy

Golden cups that carpet hillsides across the state. Closes at night and on cloudy days.

Carolina Jessamine

One of the first vines to bloom each year, smothering itself in fragrant bright yellow tubes in late winter and early spring.

Daffodil

Cheerful trumpets that naturalize beautifully and return stronger each year.

Desert Marigold

Cheerful desert wildflower that blooms almost year-round in warm climates. Thrives on neglect.

Hawaiian Hibiscus

Large tropical blooms in vivid colors appear repeatedly from spring through fall.

Ice Follies Daffodil

White petals frame a wide, ruffled cup that opens yellow and fades to cream. Multiplies fast.

Jasmine

A vigorous twining vine with intensely sweet-scented white or yellow star-shaped flowers, the scent of warm southern evenings.

King Alfred Daffodil

The classic golden trumpet daffodil. Naturalizes into massive sweeps that return for decades.

Oregon Grape

Holly-like evergreen with yellow flower clusters followed by blue berries. Tough, shade-loving native.

Persian Buttercup

Ruffled, rose-like blooms in vivid colors brighten cool spring beds and pots.

Spicebush

Clusters of tiny yellow flowers appear on bare branches in early spring on a fragrant native shrub with blazing yellow fall color.

Sweet Olive

Small clustered flowers perfume the garden with an apricot-like scent over a long season.