- Name: Douglas Spirea - Other Common Names: Hardhack / Rose Spirea / Western Spirea / Steeple Bush / Hardhack / Pink Spirea - Scientific Name: Spiraea Douglasii Syn. Spiraea Douglasii Roseata - Color: Rose Pink - Plant Seeds: Fall Sow Seeds Or Cold Stratify - Bloom Time: June - Sept - Hardiness Zone: 5 - 10 - Plant Height: 3 - 6' - Plant Spacing: 4 - 6' - Light Requirements: Sun - Soil & Water Preferences: Average - Moist - Quantity: 50 Seeds - Other: Rose Spirea Is A Very Ornamental Shrub Native To Western North America. This Spirea Is Able To Grow In Average To Moist Soil, & Is Found Naturally In Bogs, Wetlands, Swamps, Damp Meadows, & Streamside. The Deer Resistant Shrubs Are Very Dense, & Form Thickets That Provide Habitat For Wildlife. The Beautiful Pink Flowers Bloom In Huge Upright 4 – 6” Clusters. Each Cluster Is Made Up Of Zillions Of Little Flowers That Give Them A Wonderful Fuzzy Look. Rose Spirea Has A Long Bloom Time, & Bees & Butterflies Will Stop By To Pollinate Them. In Fall, The Flowers Dry Turning A Lovely Brown. They Stay On The Plant Through The Winter, Dressing Up The Landscape A Bit :)