Sweet pepperbush (sometimes called Summersweet) is a large rhizomatous shrub of well-drained acidic soils. Often in coastal pine forests. But is very adaptable and popular in home garden situations. The wild form of this plant grows between 4 and 8 feet tall depending on the richness of the soil. Flowering occurs midsummer (July-August) and are white bottlebrush like flowers on a long stalk. They are extremely fragrant! Full sun to part shade and most any soil type. Zone 3-8. PA ecotype. // Seed packet, about 50-100 seeds. Germination requirements: 60 days cold, moist stratification.