Find help & information on Penstemon heterophyllus &s;Blue Spring&s; penstemon &s;Blue Spring&s; Herbaceous Perennial from the RHS.
An added bonus too - as this charming perennial may be treated as a annual, flowering in its first year.
Penstemon heterophyllus 'Blue Springs' Seed. ... Brilliant blue flowers in June, narrow leaves. Hardy, likes sun. ... Longevity: Perennial.
Flower Specifications. Season: Perennial. USDA Zones: 5 - 9. Height: 18 inches. Bloom Season: Late Spring through early Summer. Bloom Color: Blue.. . . . .364011234867!]
