California Poppy (Eschscholzia californica) is a taprooted perennial or annual wildflower that is emblematic of the grasslands and open coastal areas of California. Known for its stunning display of bright orange or yellow flowers, the slender stems can reach up to 2 feet in height, with each stem bearing one showy flower.
 
This eye-catching plant is highly attractive to a variety of pollinators, including native bees and butterflies, such as the Painted Lady Butterfly (Vanessa cardui). Additionally, it provides habitat and food for other beneficial insects, making it an excellent choice for promoting biodiversity in ornamental gardens. The distinctive petals fold into a tulip shape at night or during cloudy weather, but open wide when exposed to sunlight. This provides excellent overnight and bad weather shelter for small solitary bees, who bed down in the center of the flowers just as they are closing at dusk.
 
The plant is drought-tolerant and thrives in well-drained soils, making it suitable for a range of growing conditions. Full sun is ideal for even growth and optimal flower production. Seeds germinate readily and can be sown up to 1/8" in fall or spring.
 
It's important to note that California Poppy can be very aggressive. It should be used in moderation in ornamental settings outside of California and never introduced into natural areas outside of its native range, as it can become invasive in both the wild and the garden. This will help prevent any potential negative impacts on landscaping and ensure the preservation of native plant communities.