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Penstemon
Penstemon
All Penstemon
digitalis
Penstemon digitalis is a very sturdy, up to 1.5 m tall species. The flowers are white or pink with a blush and appear mostly in midsummer on long loose...
hartwegii
This large-flowered perennial species develops mostly red panicles of up to 1 metre that provide a spectacular colour accent to borders. The flowering...