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Family: Gentianaceae
(jen-shun-AY-see-ee) Genus: Gentiana (jen-shee-AN-uh) Cultivar: True Blue Additional cultivar information: (PP20433) Hybridized by Probst 2008
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Category PerennialsWater Requirements Average Water Needs; Water regularly; do not overwaterSun Exposure Full SunSun to Partial Shade Foliage HerbaceousFoliage Color UnknownHeight 24-36 in. (60-90 cm)Spacing 15-18 in. (38-45 cm)Hardiness USDA Zone 4a: to -34.4 °C (-30 °F)USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) |
Where to Grow UnknownDanger N/ABloom Color Dark BlueBloom Characteristics This plant is attractive to bees, butterflies and/or birdsBloom Size UnknownBloom Time Mid SummerLate Summer/Early Fall Other details UnknownSoil pH requirements 5.6 to 6.0 (acidic)6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) Patent Information PatentedPropagation Methods By dividing the rootballSeed Collecting N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed |