Photo of a blue Penstemon

2 publications
Penstemon barbatus 'Pinacolada Violet Shades'
Leaf tip: Pointed/acute. Flower scent: Unscented. Flower color: Blue-medium violet blue-094B; Blue-light violet blue-097C. Leaf, general shape: Elongate; Lanceolate. Flower diameter: 1,5 - 2 cm. Plant height: 20 - 30 cm. Flower length/hight: 2,5 - 3 cm. Inflorescence: Raceme. Lea...
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Penstemon heterophyllus 'Blue Spring'
Flower color: Blue-medium violet blue-094B. Plant height: 50 - 60 cm. Flowering month(s): June; July; August. Moisture requirements: Well-drained.
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