Among the most exuberantly blooming plants this side of the Mississippi, Penstemon are part of the enchantment of the West. A member of the Snapdragon family, even cultivated varieties retain a natural air, with dainty, long trumpet flowers and 5 (pent) prominent stamens. Sturdy and easily maintained, species usually range from 1 to 3 ft. tall, and vary in color from white to pink to purple to deep wine-red to blue—one for every sunny spot. Trim after the first bloom to encourage a repeat flowering, and cut back in autumn for strong growth next season.
The cultivar name for this Penstemon is deceptive. With deep green foliage, upright stalks that withstand wind and rain, and bright white tubular blooms, which look like they were dipped in raspberry jam, ‘Thorn’ is cheerful and vigorous. The rose-red blossom tip fades to a blush after the flower opens. Accent these color changes and take advantage of size by blending with Geranium x magnificum, Lavandula ‘Sawyers’ or Aster ‘October Skies’ in the middle or front of the border.
Size: 2' 0" high x 2' 0" wide.
Hardy to zone 6.
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Other selections in this genus:
- Penstemon ‘Alice Hindley’
- Penstemon ‘Bev Jensen’
- Penstemon ‘Blackbird’
- Penstemon ‘Blue Midnight’
- Penstemon x iapas x ‘Hidalgo’
- Penstemon ‘Dark Towers’
- Penstemon ‘Elizabeth Cozzens’’
- Penstemon ‘Enor’
- Penstemon ‘Firebird (Ruby/Schoenholzeri)’
- Penstemon ‘Garnet’
- Penstemon ‘Geoff Hamilton’
- Penstemon ‘Ghent Purple’
- Penstemon ‘Gilchrist’
- Penstemon gloxinioides ‘White Bedder’
- Penstemon heterophyllus ‘Züriblau’
- Penstemon ‘Hidcote Pink’
- Penstemon ‘King George V’
- Penstemon x mexicali ‘Pike’s Peak Purple’
- Penstemon x mexicali ‘Psmyers’
- Penstemon x mexicali ‘Red Rocks’
- Penstemon x mexicali ‘Sunburst Amethyst’
- Penstemon x mexicali ‘Sunburst Ruby’
- Penstemon ‘Port Wine’
- Penstemon ‘Purple Tiger’
- Penstemon ‘Raven’
- Penstemon ‘Schoenholzeri’
- Penstemon ‘Stapleford Gem’
- Penstemon ‘Violet Kissed’
- Penstemon virgatus ‘Blue Buckle’