Pinwheel Series. A Burpee breeding breakthrough mildew resistant zinnias! Grow this carefree beauty even where summers are humid. Compact bushy plants topped with a profusion of 3˝", single, daisy-like blooms all summer long. Good in bouquets and containers. Burpee Bred. Proven tops for performance and adaptability. Easy, Annual. Sun. Attracts Butterflies. Zinnias add bold, vibrant color to gardens. The more you cut, the more they bloom! Heat-loving and very easy to grow. Space plants of small kinds 8-10" apart, taller kinds up to 18" apart.