Tropical heyday can be grown alfresco in any USDA Zone 9 and 10 garden . For those populate in cold-blooded climates , these exotic beauties are best as houseplant or as potted plants that can be taken indoors at the first hint of cold conditions . Many tropic blossom have names that are as intriguing as the industrial plant themselves .
Hibiscus
Hibiscus , the DoS flower of Hawaii , is noted for its vibrant , trumpet - forge blossoms . Hibiscus are well - suited to tropical ( frost - free ) climates , but may be grown as annuals in pots in other area and brought inside during the winter . Hibiscus flowers are cherry , pinkish , yellow , lilac , amber or livid and come in with exclusive or double flowers .
Bougainvillea
A indigen of South America , this colorful , flowering bush can grow up to six feet tall . The Bougainvillea is a anchor of tropic gardens and is noted for its pinkish , violent and orange three - leaf blossoms . There are 14 species of Bougainvillea .
Canna
This marvelous , elegant plant spring up from rhizomes and is aboriginal to woodland in Asia and tropic surface area of North and South America . canna are known for paddle - shaped leave that grow up to 24 inch recollective and three - petal , lily - shaped flowers in lovesome chromaticity : red , pink , orange and yellow . Cannas are hardy in growing zones 8 and above , but are frequently grown in cold climates and poke up and replant each year .
Orchid
Orchids have been tantalizing flora enthusiasts for centuries . Even Charles Darwin include the orchid in his writings about organic evolution . According the Britain ’s Kew Gardens , there are at least 22,000 mintage of orchid . The most rough-cut of these dainty tropic dish are the Dendrobium , Epidendrum and Pleurothallis . orchid thrive in humid weather condition and moist , almost wet , dirt . Vanilla is also a member of the orchid family .
Protea
This evergreen , blossom bush is aboriginal to rocky hillsides of tropic Africa and South America . These peak are known for their spiky cone shape - shaped clusters and are normally found in shades of light pink . They expand in growing zones 9 and 10 .
Anthurium
These heart - shaped bloom with cylindrical spadix are commonly associated with Hawaii . The crimson , blank and pink bloom are commonly used in tropic bouquet and as houseplants . These pelting timber natives flourish alfresco in only very dampish , tropic climates
Bird of Paradise
Bird of Paradise , the common name for the Heliconia plant , is noted for its spiky Orange River and yellow bloom on foresightful , green stalking . This evergreen flora is native to tropic rain forests in Central and South America as well as part of Southeast Asia . There are around 100 coinage of this industrial plant .
