Type:  Perennial
Sun:  Full
Height:  2 feet  
Spread:  
Spacing:  8-12 inches
Soil Moisture:  Medium-Dry, Dry 
Soil:  sandy or rocky soil
Bloom Time:  May - June
Bloom Color:  Lavendaer blue - Purple
 
Notes:  Penstemon grandiflorus is one of the showiest of all Penstemons! Plants will self-seed in optimum growing conditions - allow to naturalize. Deer resisitant.
 
Uses: Rock gardens. Some gardeners consider the plants to be inappropriate for conspicuous border areas because the bloom period is short and is followed by somewhat unattractive die back. Plants may be cut back to basal foliage after bloom to improve appearance of the planting.
 
Attracts:  Bumblebees like to visit the flowers for nectar and this plant is well liked by birds. In addition to the many pollinators it attracts, Penstemon grandiflorus is one of the host plants for the Chalcedon Checkerspot and Edith's Checkerspot within the western region of its range.