Hot-rock Penstemon is a beautiful flower, but it isn't very commonly known. Some synonyms for this flower include Firecracker Penstemon, Red Penstemon, and Scarlet Bugler. These names are given because of the flower's bright red color, which resembles a tiny firecracker or bugle. The flower is commonly found in the western United States and is known for its ability to grow in hot and dry conditions. It is a perennial plant with a long flowering season, from late spring to early summer. Hot-rock Penstemon is often used in landscaping and can be a great addition to any garden. Its beauty and resilience make it a perfect choice for those looking for a low-maintenance plant that can add color and life to any landscape.