Family: Primulaceae
Genus: Primula
(PRIM-yew-luh) Species: sieboldii (see-BOLD-ee-eye) Synonym:Auganthus sieboldii Synonym:Primula cortusoides var. sieboldii Synonym:Primula sieboldii var. patens
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Category PerennialsWater Requirements Average Water Needs; Water regularly; do not overwaterSun Exposure Sun to Partial ShadeLight Shade Foliage HerbaceousFoliage Color UnknownHeight 6-12 in. (15-30 cm)Spacing 12-15 in. (30-38 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) 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 zoneCan be grown as an annual Danger UnknownBloom Color Pale PinkPink Rose/Mauve Magenta (pink-purple) White/Near White Bloom Characteristics UnknownBloom Size UnknownBloom Time Late Spring/Early SummerOther 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 Non-patentedPropagation Methods By dividing the rootballFrom seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; stratify if sowing indoors Seed Collecting Allow seedheads to dry on plants; remove and collect seeds |