Family: Asteraceae
(ass-ter-AY-see-ee) Genus: Ratibida (ruh-TIB-ih-duh) Species: columnifera (kol-um-NEE-fer-uh) Synonym:Ratibida columnaris Synonym:Rudbeckia columnaris Synonym:Rudbeckia columnifera
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Category PerennialsWater Requirements Drought-tolerant; suitable for xeriscapingSun Exposure Full SunFoliage HerbaceousThis plant is resistant to deer Foliage Color UnknownHeight 24-36 in. (60-90 cm)Spacing 15-18 in. (38-45 cm)Hardiness USDA Zone 3a: to -39.9 °C (-40 °F)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) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F) |
Where to Grow UnknownDanger UnknownBloom Color Scarlet (dark red)Gold (yellow-orange) Bright Yellow Maroon/Burgundy Bloom Characteristics Flowers are good for cuttingThis plant is attractive to bees, butterflies and/or birds Bloom Size UnknownBloom Time Late Spring/Early SummerMid Summer Late Summer/Early Fall Other details UnknownSoil pH requirements 6.6 to 7.5 (neutral)7.6 to 7.8 (mildly alkaline) Patent Information Non-patentedPropagation Methods By dividing the rootballFrom seed; direct sow outdoors in fall Seed Collecting Allow seedheads to dry on plants; remove and collect seedsProperly cleaned, seed can be successfully stored |