There are many different types of petunias to choose from, each with their own unique characteristics. Some of the most popular types include the grandiflora, which features large, showy blooms; the multiflora, which produces a profusion of smaller blooms; and the spreading petunia, which is ideal for ground cover and hanging baskets. Other popular varieties include the milliflora, the wave petunia, and the surfinia.
Petunias are relatively easy to grow and care for, making them a popular choice for gardeners of all skill levels. They prefer full sun and well-draining soil, and should be watered regularly to keep the soil moist but not waterlogged. Petunias also benefit from regular fertilization, with a balanced fertilizer every two to three weeks. Deadheading the spent blooms will encourage the plant to produce more flowers.
To prolong the bloom time of your petunias, there are a few things you can do. Regular deadheading will encourage the plant to produce more flowers, as will fertilizing every two to three weeks. Pinching back the stem tips when the plant is young will also encourage branching and more blooms. In addition, avoiding overhead watering can help prevent fungal diseases that can shorten the lifespan of your petunias.