For the second part, it’s difficult to really put a timeline on each individual blossom. Part of Petunia Used. Each anther consists usually of two lobes connected together by a suture known as connective. But even if we know the uses of the plant, one should also know which part of the plant could be used. There are many Petunia benefits and uses. Petunia is a type of flowering plant that belongs to the family of nightshades. Well, you are at the right place to know the answer. Petunia species With their colorful flowers, reliable performance, and easy-care nature, petunia flowers are great annuals for brightening the summer garden. More recent introductions, such as the wildly popular wave petunias and the petunia look-alike Calibrachoa, or Million Bells, are much more carefree and low maintenance. Grow them in containers, hanging baskets or in the landscape. To tackle the first part of the question, petunias can live for 2 or 3 years but generally behave as annuals because they can’t survive the freezing temperatures of the winter. There are 35 species of petunia that originate from South America. Androecium, the male reproductive whorl of flower, is composed of stamens. Petunia was introduced to Europe in the 19th century where it instantly gained popularity as decorative, garden plant. The common garden petunia (Petunia ×atkinsiana) is an ornamental plant whose showy trumpet-shaped flowers make it popular for summer flower beds and window boxes. Four species of petunias include hundreds of cultivars and offer a perfect addition to the home landscape: Grandiflora petunias is the most common type of growing petunias. Learn how to grow petunias. Petunia grows in areas that provides at least 5 to 6 hours of sun per day, on a well-drained, fertile soil. Proper petunia care is simple and easy. Traditional petunias favored cool weather and needed constant deadheading to continue blooming. Find specific plants with our Plant Finder & Plant Selector. Petunia, genus of about 35 species of flowering plants in the nightshade family (Solanaceae), native to South America. These annual flowers bloom almost nonstop throughout the summer. Petunias have been garden favorites for decades. Someone might wonder What is Petunia or how it is useful? More on that below. See how RHS can give expert advice on growing, feeding, pruning and propagating plants. After learning how to plant petunias you can include them in your flower bed and container garden. A stamen (= microsprophyll) is made up of chiefly two parts: a large terminal portion, anther, and a stalk known as the filament.