Family: Scrophulariaceae
(skrof-yoo-larr-ee-AY-see-ee) Genus: Buddleja (BUD-lee-uh) Species: davidii (duh-VID-ee-eye) Cultivar: Cornwall Blue
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Category PerennialsShrubs Water Requirements Drought-tolerant; suitable for xeriscapingAverage Water Needs; Water regularly; do not overwater Sun Exposure Full SunSun to Partial Shade Foliage DeciduousFoliage Color UnknownHeight 6-8 ft. (1.8-2.4 m)Spacing 4-6 ft. (1.2-1.8 m)Hardiness 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) 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) |
Where to Grow Grow outdoors year-round in hardiness zoneDanger N/ABloom Color Blue-VioletLavender Bloom Characteristics This plant is attractive to bees, butterflies and/or birdsFlowers are fragrant Bloom Size UnknownBloom Time Mid SummerLate Summer/Early Fall Mid Fall Other details May be a noxious weed or invasiveSoil pH requirements 5.6 to 6.0 (acidic)6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) Patent Information UnknownPropagation Methods From woody stem cuttingsFrom softwood cuttings From semi-hardwood cuttings Seed Collecting Allow pods to dry on plant; break open to collect seeds |