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Family: Plantaginaceae
Genus: Penstemon
(PEN-stem-on) Species: heterophyllus (het-er-oh-FIL-us) Cultivar: Blue Springs
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Category PerennialsWater Requirements UnknownSun Exposure Sun to Partial ShadeFoliage HerbaceousFoliage Color UnknownHeight 18-24 in. (45-60 cm)Spacing 12-15 in. (30-38 cm)Hardiness USDA Zone 7a: to -17.7 °C (0 °F)USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F) |
Where to Grow UnknownDanger N/ABloom Color Blue-VioletBloom Characteristics UnknownBloom Size UnknownBloom Time Mid SummerOther details UnknownSoil pH requirements UnknownPatent Information Non-patentedPropagation Methods UnknownSeed Collecting Allow pods to dry on plant; break open to collect seedsProperly cleaned, seed can be successfully stored |