Family: Clethraceae
Genus: Clethra
(KLEE-thra) Species: alnifolia (al-nee-FOH-lee-uh) Cultivar: Hummingbird
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Category ShrubsWater Requirements Requires consistently moist soil; do not let dry out between wateringsSun Exposure Full SunSun to Partial Shade Light Shade Foliage DeciduousTextured Foliage Color UnknownHeight 36-48 in. (90-120 cm)Spacing 36-48 in. (90-120 cm)Hardiness USDA Zone 3b: to -37.2 °C (-35 °F)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) 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 UnknownDanger N/ABloom Color White/Near WhiteBloom Characteristics This plant is attractive to bees, butterflies and/or birdsFlowers are fragrant Bloom 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) Patent Information UnknownPropagation Methods From softwood cuttingsBy tip layering Seed Collecting Unknown |