Trends For Petunia Flower Zone 20+
Mar 31 2019 Grandifloras are the most common with their usual big flowers and plants that grow upright from 8 to 12 inches high.
petunia flower zone. Either way your petunia varieties fall into two categories. However petunias can also be started indoors in late winter. They have delicate paper-thin blooms that can become easily frostbitten and damaged.
When deadheading the growing petunias remove the base of the flower to include seed removalPetunias allowed to go to seed will slow or stop blooming. Most gardeners buy petunias at their local garden center or greenhouse in spring. Often referred to and grown as annuals petunias Petunia spp are technically warm climate perennials.
They can be successfully grown in USDA hardiness zones 3 through 11. They grow year round in US. Throughout most of the country petunias are warm-season flowers that can produce a carpet of color from spring until frost.
Space grandifloras and multifloras about 12 inches apart in full sunlight or several inches closer together when planted in a shadier location. Light sandy soil is ideal. Break up the soil by digging down 6 or 8 inches mix in some organic matter and then smooth and level it.
You can also get spreading petunias for those spots where you want to really cover your space with color. While petunias will bloom in bright indirect light they do their best in full sun. Apr 19 2018 Petunias are annuals in most locations.
Free shipping on orders over 79 See USPS Shipping Announcement. In intermediate- and low-desert areas such as Tucson and Phoenix and in eastern zone 10 petunias fail in humidity or during extended periods of high heat temperatures in the 90s or both. As a hardy perennial you only need to plant them once the Mexican petunia is one of several desert plants that are recommended for warm dry climates.