Rock Candy Blue Beardtongue is a tidy native herbaceous perennial with rigid upright stems and green lance-shaped foliage. Loose raceme of small tubular purple-blue flowers with distinct candy-striping in the throat bloom heavily in late spring and again in late summer if deadheaded. Grows best in partial sun and dry to medium well-drained soil. Drought and heat tolerant.
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 Type:  | 
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 Origins:  | 
 Southwest N. America  | 
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 Height:  | 
 1' - 1.5'  | 
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 Spread:  | 
 1’ - 1.5'  | 
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 Spacing:  | 
 1'  | 
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 USDA Hardiness Zone:  | 
 6 - 9  | 
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 Culture:  | 
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 Bloom Color:  | 
 Blue  | 
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 Season of Interest:  | 
MAINTENANCE NEEDS: Low Maintenance.  No serious pests or diseases.  Root rot can occur in poorly-drained soils.
LANDSCAPE USES:  Accents or Group Plantings, Borders, Rock Gardens, Xeriscape Gardens, Naturalized Areas, and Containers.
COMPANION PLANTS: Purple Coneflower, Little Bluestem, Giant Hyssop
IMAGE: 阿橋 HQ, 釣鐘柳屬 Penstemon barbatus -瀋陽植物園 Shenyang Botanical Garden, China- (9198166973), CC BY-SA 2.0