Flowering stems of firecracker penstemon pop with color and add a burst of red flowers to landscapes in summer. Firecracker penstemon (Penstemon eatonii) is just one of about 270 species of penstemon, ...

Here we are, three-quarters through the summer heat of July; the spark, crackle and vast array of colorful fireworks all but a fading glow in our mind’s eye. Crossandra, known as the “firecracker ...