Growth habits range from slightly mounded to trailing, depending on the variety. The Petunia flower has hairy leaves. Spreading petunias may need weekly fertilization, while container-grown plants will respond well to a time-release fertilizer. Growing Petunias: A Complete Guide on How to Plant, Grow, and Care for Petunias An ideal plant for the beginner gardener, the petunia is gorgeous and very easy to grow. If it is a short, stocky seeding, just pinch an inch or less. Deadheading petunias is an excellent way to keep your petunias in perpetual bloom. Heat- and drought-tolerant, petunias are tough plants that thrive with minimal care. Petunias are usually carefree growers although they can get pummeled by rain. Care is very easy in the container of Petunia Flowers. After pruning, fertilize and water the plants well to … For the Petunias, you choose a pot of 12 “and do not plant more than 3 plants in a pot. To bloom abundantly, petunias require a good soak in the sun for at least 6 hours. Remove all spent flowers and leaves as soon as you spot them. And remember to water the spreading varieties and those in containers more often. The plant soil in the containers is very hot and starts drying, the plant needs water to dry the spell, However, these are especially hot and drought harsh. Many gardeners heap scorn on petunias, but I’ve always had a soft spot for these summer annuals which are available in a myriad of colours and forms including the perennial varieties sold as Million Bells or calibrachoa.. Petunias flower in red, purple, pink, yellow or white or the flowers may display combinations of these colours. Petunias are one of the most popular garden flowers for both borders and containers. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. They like fertilizers that are balanced like 8-8-8 or 10-10-10. By: Becca Badgett, Co-author of How to Grow an EMERGENCY Garden. Learn tips for creating your most beautiful (and bountiful) garden ever. Seedlings are preliminary well watered in pots and then planted with a clod of soil keeping the distance of 12-16 inches between the bushes. They produce flowers in a broad range of colors including pastels, bright neons, and blends. Do not collect the crowd in the container. They grow easily when you transplant them to the garden, and this should be done in the spring when the threat of frost has passed. Six to 24 inches tall and spreads of up to three feet, Hardy Chrysanthemum (Garden Mum) Plant Profile, Calibrachoa (Million Bells) Plant Profile. While the plants need watering, the flowers are … Plant care for Petunia, Annual Flower Information. Soak in sun. Never fertilize petunias that aren't properly hydrated. Petunia is genus of 20 species of flowering plants of South American origin. Sign up for our newsletter. Like many flowering annuals, petunias don’t like to be dry for long periods. Proper petunia care is simple and easy. Sign up to get all the latest gardening tips! Older varieties of petunias require diligent deadheading or they will stop blooming. Make beautiful pots, containers, and hanging baskets with these Petunias. Powdery mildew and aphidscan diminish the flowering beauty of plants. When potting, use a free-draining soilless potting mix fortified with a slow-release fertilizer. However, most petunia varieties will bloom throughout the summer, except in extreme heat. When purchasing young petunias, choose plants with a compact form and unopened buds. But don’t overwater, as too much water will cause the plants to become leggy with few flowers. Four species of petunias include hundreds of cultivars and offer a perfect addition to the home landscape: Care of petunias includes regular watering and as much sunlight as possible to promote multiple blooms. 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