Steeplebush is a medium height (3-5 foot tall) colonizing shrub with deep pink flowers from July-September. While it tolerates a wide variety of soil types, the preference is for moist, acidic sandy soils and full sun. Flowers are loved by a broad variety of pollinating insects. Zone 3-8, PA ecotype. // Seed packet, about 50-100 seeds. Germination requirements: 60 days cold, moist stratification.