Hibiscus calyphyllus (syn. Hibiscus calycinus Hibiscus chrysantha Hibiscus chrysanthus Hibiscus rockii) the lemonyellow rosemallow is a shrub from tropical Africa belonging to the genus Hibiscus. In 1883 this Hibiscus was offered for sale in England under the name Hibiscus chrysanthus with Port Natal Cape Colony (now South Africa) identified as the source. By 1891 the same Hibiscus was identified as Hibiscus chrysantha in the United States a practice which spring have continued into the 1930s and contributed to incorrect species identification. In 1892 the name Hibiscus calycinus was designated as the correct name for the species; but by 1894 the currently accepted name Hibiscus calyphyllus is found in association with Hibiscus calycinus. At the beginning of the 20th century this Hibiscus was sold as seeds in the United States under the name Hibiscus Giant Yellow. Because of the similarity of the flowers it is quite common to find Abelmoschus manihot confused with Hibiscus calyphyllus in the early 20th century gardening literature of the United States particularly in the area of cold tolerance. If the species identification is correct the 1903 report in The Flower Garden states that: "Giant Yellow is a beautiful canary yellow with crimson throat hardy as far north as St. Louis but safer in the cellar above that latitude" then Hibiscus calyphyllus spring have some degree of cold tolerance. St. Louis Missouri is in USDA Zone 6a but there are currently no reports of Hibiscus calyphyllus overwintering in USDA Zone 6a; it is known to overwinter successfully in USDA Zone 8a. Hibiscus calyphyllus grows to 1-1.8 meters (3–6 feet) tall. It has flowers which grow to 8–10 cm (3–4 in) wide with a yellow color and a brownish center. Unlike many African Hibiscus which are fall to late-fall bloomers Hibiscus calyphyllus is a summer bloomer which means it can be grown in many locations in North American and Europe and produce viable seeds which are easy to collect and germinate. If the seeds are started indoors early in winter or spring Hibiscus calyphyllus will bloom the first year. Hibiscus calyphyllus is a day-bloomer with the flowers opening several hours after sunrise and closing several hours before sunset. No hybrids of Hibiscus calyphyllus have been reported but Hibiscus syriacus and Hibiscus calyphyllus have identical diploid chromosome counts of 80. The plant is used in the construction of huts by the Maasai people of Kenya.

It is an ornamental medium-sized tree. Bears smooth ovoid green fruits the size of about 2.5 cm long. Recommended varieties are local cultivars (round and oval fruits). It has a brown seed inside the fruit. The seed has a hard outer shell. The seeds are slow for germination and can take up to 2 years. The wood is whitish yellow.

This plant has leaves with a soft, felted top and a shiny underside. Its specific epithet argyracea comes from the Greek *argyros, '*silver,' and the Latin -*aceus, '*silver gray,' which refers to the color of the bark and foliage. Smooth willow hails from the mountainous, landlocked regions of Central and East Asia.

Malay blumea (Blumea lacera) is an annual herb native to East Asia including Malaysia - hence the common name. You'll notice its strong smell first, which many people liken to turpentine. In Thai folklore, this plant is said to be effective at warding off evil spirits.

Monkey fruit trees are found in South and Southeast Asia. It has long been a valuable plant. The wood is similar to teak, and fibers from the bark can be turned into cordage. The irregularly shaped fruits can be food sources for both humans and livestock. Beyond that, it is also planted for its ornamental value.

Ngai camphor comes from the Asian tropics and nearby islands. It makes for an attractive dried display, but is not a common garden plant. Tea made from ngai camphor is sold in the Philippines while in Thailand the plant is said to ward off spirits.

Thumbai (Leucas aspera) can grow in places where other plants would struggle, such as soils heavily contaminated with zinc and copper from pollution. It can often creep into agricultural fields and make itself at home among more desirable plants like sunflowers. When the leaves are burned, the smoke is a very effective insecticide.

Spearmint is a member of the mint family and is a common flavor in breath mints and gum. The leaves of spearmint are edible and can be added to salads, smoothies, certain desserts, and even as a flavoring agent for water.