Polyanthus Primrose. Primula polyantha, Primrose Family: ( Primulaceae ), Polyanthus Primrose. Also called: English Primrose, Common Primrose. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. Primula polyantha are hybrid primroses, crosses especially of P. veris & P. vulgaris. They come in a sundry of colors & forms. Generally speaking they are bred for rapid production & rapid sales & are seldom garden-hardy, but more often growing weaker rather than stronger over time. Especially in Arizona. We recommend them only for winter color in Arizona. There are several hybrids available. They do attract butterflies. Quick Notes: Height: 8 - 12 inches high & about 9 inches wide. Flowers: Large, full clusters of 1 to 2 inch wide blossoms ( the miniature types are smaller ). Can be almost any color; many are very brilliant. Five petals which can overlap and are often indented at the apex. Blossoms may be borne on individual stems, in clusters at stem ends, or in tiered, candelabra - like clusters along the stem. Flowering Time: Winter to Early or Mid - spring. Leaves: Green, tongue shaped, to about 8 inches long leaves. They resemble romaine lettuce. Found: Origin: Himalayas and cool regions of southeast Asia and Europe. 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) Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) Sun Exposure: Light Shade Elevation: 0 to 7,500 Feet. Habitat: Landscaping: Moist, Acid Soil. Miscellaneous: Hardiness: USDA Zones 5 - 10. Perennial, grown as an annual in the warm Phoenix or Tucson areas. Does not survive summer heat. Prefers light shade, moist, acid soil, rich in organic matter.

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