Flowering plants can be found in any American landscape, both natural and man-made. Not all need be native to the continent to flourish, nor do all have a pleasing scent. But all are attractive, colorful and play an integral part in plant propagation. Some flowers have adapted over time to enhance pollination, while others have been hybridized to improve bloom color, size and fragrance.
Peonies, be they garden or tree peonies, have been grown for centuries for their showy blooms that are often sweetly scented. The shrub-like plants grow best in cool climates and sunny spots. Flowers, grouped into five categories according to shape, usually bloom in spring, according to North Carolina State University Extension. Blooms come in colors from cream to dark red. Many hybridized varieties are named after relatives or famous people of gardeners who first grew them.
Tulips are a perennial bulb plants that also bloom each spring. Their flower colors range from bright yellow to light pink and encompass more than 3,000 registered varieties, according to TheFlowerExpert.com. Flowers, shaped like upside-down bells, grow perched on the tops of long stems. They were first cultivated in the Ottoman Empire; today the majority of bulbs come from Holland.
Butterfly weed is a wildflower that grows up to 3-feet tall and features rounded clusters of bright orange flowers that attract butterflies and hummingbirds. These flowers bloom from May through December, making this plant a popular perennial garden addition. It grows best in sunny locations, and can tolerate poor soil and arid conditions.
WildflowerInformation.org reports Forget-Me-Not plants are early-season bloomers indigenous to Europe and Asia. They are often used as ground cover plants because they don't grow more than 1 foot tall. Clusters of tiny, soft blue, five-petaled flowers distinguish it. Forget-Me-Nots can grow in sun or shade, but like moist soil.
Purple coneflower, also called Echinacea, features daisy-like flowers with spiky, dark seeds that form a head. These hardy wildflowers that reach up to 3-feet tall, grow well in fertile, well-drained soil and full sun or partial shade, but they are also drought tolerant as well. Petals are usually soft lavender, but can be white, yellow and darker purple. Texas A&M University's Department of Horticulture says gardeners like them for their long summer bloom times, which reach from June through October, for their vase life of up to a week, and because they also attract butterflies.