Englemann’s Hedgehog, or Echinocereus Engelmannii, is a short clumping cactus that stops traffic when its large, brilliant, magenta flowers appear in May. A single plant may reach up to 12 inches high and 8 inches across, but clumps can eventually spread several feet wide. Its long gray, downward-pointing spines show bands of red after a rain. It accepts some shade. It is native to the Sonoran Desert. The canopy coverage is approximately 28 square feet.
Source: Lush & Efficient