Romneya Coulteri likes full sun and needs watered regularly through it’s first summer. After that the rains should be sufficient but a little supplemental water can’t hurt in times of severe drought. This plant is native to Southern California so it’s evolved to survive the harsh summers. Can reach 8′ tall, the spread is potentially unlimited popping up via rhizomes (horizontally spreading roots just under the surface). The flowers appear in late spring through early summer and resemble large fried eggs (sunny side up!). This plant often goes deciduous when summer temperatures peak so don’t worry if it looks dead – it’s probably not.