Eschscholzia californica,
California Poppy (Native)

Annual/perennial, 1 – 1½ ft. tall. Bright, orange flowers bloom spring-summer. Adapted to most of US. Native to west coast. Grows wild along prairies, meadows, roadsides and foothills. Fairly drought-tolerant and easily established. Tolerant of full or partial-sun. Plant in spring ¼ inch deep. 293,000 seeds/lb.

USDA: Plant Profile | Plant Guide