Outsidepride Yarrow White Wildflower - 5000 Seeds Outsidepride is a family owned U.S. Company. No other company on this listing is selling our seed. USDA Zones: 4 - 9 Height: 18 - 24 inch perennial Bloom Color: White Sowing Rate: 1/3 ounce per 1,000 square feet or 1 pound per acre