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Regional Picks: Perennial Hole Fillers – Mountain West

Fine Gardening - Issue 146

Mountain West


Shrubby penstemon (Penstemon fruticosus)

USDA Hardiness Zones: 4 to 9

Size: 16 inches tall and wide

Conditions: Full sun to partial shade; well-drained soil

Shrubby penstemon fills empty garden spots with its many bell-shaped blossoms, which bloom in rose-purple and lavender between May and August and attract bumblebees and hummingbirds. It looks especially nice cascading over rocks. Shrubby penstemon is native to the foothills and cliffs of the West, from Wyoming and Montana to the Cascade Mountains of Washington and Oregon. Trim its branch tips in early spring to maintain a bushy shape.


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