Exotic Plants of the United States

The United States has a varied range of landforms and climatic regions. This extends from tropical to arctic zones that are filled with plains, mountains, savannas, forests, marshlands, deserts and swamps. Because of these variations there are exotic and non-invasive native plants that are specific to their particular regions.

Belladonna Lily

This exotic flower belongs to the Amaryllis genus of flowering plants. Because of its name, belladonna lily is erroneously considered to belong to the lily family. The belladonna lily is grown for its ornamental value as the erect stem bears 2 to 5 flowers at its tip. It is a perennial flowering variety and can be easily grown in the well drained soil of the flatlands in tropical and subtropical regions. The belladonna lily can be grown by planting its bulbs 1 foot apart from each other in mulched soil.

Birds of Paradise

Birds of paradise is an exotic flowering plant that has acquired its name from the shape of its flower, which resembles a bird's head and beak. It is commonly known as a crane flower and blooms from September to May. The perfect soil type for growing the birds of paradise is a peat-based soil; available especially for potted plants. Re-pot these plants every spring season. The soil must be kept moist throughout the duration of the spring and summer.


Lilacs have a strong fragrance and have been grown in the United States from the mid-1750s to the present day. These bushes have a long life--sometimes more than a hundred years. However, these bushes bloom only for a short period of time and hence the bushes of early, mid and late varieties can be planted throughout the garden to display flowers throughout the course of the year. The blooms of the lilac can actually be prolonged if there is a cool but dry spell.


Heliconia is commonly referred to as a lobster-claw or a false bird of paradise. This beautiful flower has multi-color petals and exotic flower structures. These are native plants of the tropical Americas and Pacific Ocean islands. Flowers bloom from banana-shaped leaves in clumps. Some of the flowers droop down from the heliconia's stem and hence are referred to as a hanging heliconia. This plant requires a loamy soil, rich in humus, for it to flourish. It also needs sufficient amount of sunlight and a climate that must not dip below 40 degrees Fahrenheit.


The calatheas is grown in tropical gardens for its gorgeous flowers and attractive foliage. It is commonly referred to as prayer or zebra plants. These plants grow well in hot and humid conditions while taking on bright, indirect light. Active and noticeable growth of calatheas occurs from March to October. It is advisable to re-pot them during the spring. Calatheas can also thrive in water-controlled pots or containers with a decent supply of humidity.

Keywords: exotic plants US, USA exotic plants, rare plants USA

About this Author

Based in Northern California, Devin Dupre-Neary has a bachelor's degree in nursing from UC Davis. Rather than move towards a master's or work in a hospital, he chose a different route. In 2009, he wrote professionally, part-time, writing articles on a host of subjects from health issues to gardening.