Tender perennial that is winter hardy to USDA Zones 10-11. In other zones, it is grown as an annual. Per forms well in average, medium moisture, well-drained soils in full sun to light shade. Tolerates poor soils as long as drainage is good. Although many petunias may be grown from seed sown indoors 10-12 weeks before last frost date, many gardeners search local nurseries for interesting cultivars in inexpensive cell/six packs and only resort to seed in situations where a specific cultivar is sought that is only available from seed. Purchased plants often benefit from pinching at the time of planting. Prompt deadheading of spent flowers promotes more rapid formation of new buds. Cut back plants that become leggy. If plants decline in the heat of summer, cut back to stimulate later bloom. Favorite or unique plants may be overwintered indoors in bright cool location. Most hybrids do not come true from seed. Noteworthy Characteristics Second only to impatiens in annual bedding plant sales, the petunia has been a popular plant for many years due in large part to its ease of culture and non-stop flowering from spring to frost. Most of the petunias commonly sold in commerce today are complex hybrids (P. axillaris x P. integrifolia). ve some fragrance.
