Updated: Jun 15, 2021
I don't typically recommend growing annual flowers, but when I do, watch out!
These intensely vibrant, short flowering shrubs will readily self seed when surrounded by bare dirt. So if you plant them in an exposed desert-like area, you will be blessed with years of incredible blue blossoms, with basically no work involved!
As the name suggests, these brilliant flowers are native to the Mojave and the Sonoran Deserts. So obviously, they will prefer well-draining, sandy soil, and very sunny locations. They cannot survive frosts, but will grow happily if sown in situ in the early spring, before the last frost.
After they are established, they should continue to self propagate, and need basically no extra watering or tending.
So if you are looking for an amazing ground cover for dry patches, look no further!