Maize (Zea mays) is a well known domesticated cereal grain first domesticated in Mexico. In much of the world it is also called corn. Worldwide cultivation of maize surpasses other prominent grains like wheat and rice. Maize must be planted in the spring due to its intolerance for cold weather.

Aloe vera is an evergreen succulent species native to the Arabian Peninsula. The thick leaves are filled with gooey flesh that stores water for survival in its native desert territories. Aloe vera has become a popular houseplant and is also incorporated into a wide range of cosmetics and skin-care products.

Florist kalanchoe (Kalanchoe blossfeldiana) originates from Madagascar and has been a popular houseplant since the 1930s. Unlike most other succulents that are grown for their interesting leaves, Kalanchoe blossfeldiana is valued for the colorful flowerheads it produces in autumn and winter. This is the reason it is commonly gifted during holidays, earning it another name - Christmas kalanchoe. It is toxic to pets.

The china rose (Rosa chinensis) is a Southwest China native. The plant has been cultivated for so long that it has become hard to tell the difference between wild and cultivated varieties. With medium-sized clusters of flowers and a long blooming season, it is easy to see why the china rose was chosen as the basis for many rose hybrids.

Weeping fig (Ficus benjamina) is an evergreen tree native to Asia and Australia. It is one of the most popular houseplants in the world, known for its elegant, glossy leaves. However, people with allergies should avoid weeping fig, considering that it is a major source of indoor allergens. All parts of the plant are poisonous except the fruits.

Rubber tree (Ficus elastica) is a large tree with wide, oval, glossy leaves. Its milky white latex was used for making rubber before Pará rubber tree came into use, hence the name. Rubber tree is an ornamental species, often grown as a houseplant in cooler climates.

The pepper are commonly used for cooking in places such as the Southern U.S. and Central America. Most are moderately spicy, though because there are so many variants, the spice level can vary dramatically. Cayenne powder is also a popular seasoning product made from pepper plants.

“Sempervivum” means “always living” in Latin. Adapted to droughts, baking sun, and cold winters of their native south European mountains, the common houseleek can truly live through almost anything. It has been grown for centuries on roofs of European houses as it was believed to deter lightning strikes. Young houseleeks grow around the mother plant, earning it the alternative name “Hens and Chicks.”

Dwarf umbrella tree (*Schefflera arboricola*) is an evergreen, multi-stemmed shrub native to China. It is commonly grown as a houseplant or a garden plant in milder climates for its decorative palmate compound leaves. The leaves contain calcium oxalates, which can damage internal organs when ingested. It shouldn't be confused with the Australian umbrella tree, *Schefflera actinophylla*.

Nerium oleander, colloquially known as oleander, is a shrub or a small tree, known for its majestic pink five-lobed flowers and deep green lanceolate leaves. Oleander is one of the most poisonous popular decorative garden plants, so it is advised to keep small children and pets away from it.

Wine grape (Vitis vinifera) is a woody, fruit-bearing vine with a very long and vivid history of cultivation for culinary, recreational, and ritualistic purposes - most notably in winemaking. The earliest known evidence of domesticated wine grapes has been identified in Georgia, and carbon dating traces its domestic origins all the way back to 6000 BC. In addition to wine, the fruit of the wine grape is eaten in the form of grapes, raisins, and currants.

Looking like a miniature fairy tale tree, jade plant is one of the world's most popular succulents. Native to southern regions of Africa, Crassula ovata is well adapted to the dry warm air of modern homes. It grows slowly but lives for so long that plants get passed from generation to generation. It is toxic to dogs, cats, and horses, and even mildly toxic to humans.

Madagascar dragon tree (Dracaena reflexa var. angustifolia) is an evergreen tree often cultivated as an ornamental or houseplant. It is no wonder why madagascar dragon tree is one of the most popular houseplants - its richly colored, olive-green leaves and thick stems are very aesthetic. Aside from the attractive looks, madagascar dragon tree is said to have good air-purifying qualities (as many indoor plants).

Begonia cucullata is a native of South America. It is often used as a ground cover and also does well in containers. The blossoms of wax begonia can be red, white, or pink. In some states like Florida and Georgia, wax begonia is considered an invasive species due to its tendency to reseed prolifically in the right conditions.

The bigleaf hydrangea is a deciduous shrub native to Japan, and is known for its lush, oval, colorful inflorescence. The two types of Hydrangea macrophylla are mopheads - with large, ball-shaped, sterile flower clusters, and lace capes - with small round fertile flowers in the center, and sterile flowers on the outer side of each inflorescence. Depending on soil pH, blooms can change color from pink to blue.

Lemon is a cultivated small evergreen tree known for its yellow, juicy, sour fruits full of citric acid. Its origins are unknown, but it was probably first created in India, China, or Burma as a hybrid of sour orange (Citrus × aurantium) and citron (Citrus medica). It is commercial fruit cultivated in warm regions around the world.

Common lilac is a shrub native to the Balkan Peninsula that blooms with a fragrant blossom. It grows on rocky terrain and has a suckering habit. The blossoms are used to flavor honey, sugars, food, and other delights and farmed for its fragrant flowers in the spring.

Portulaca oleracea, colloquially known as common purslane, is an annual succulent species with reddish stems and tiny yellow, five-petal flowers. It is used for culinary purposes in various parts of the world, most often raw, in salads. Common purslane is also a good companion plant for crops that thrive in moist soils.

Olive (Olea europaea) is an evergreen tree or shrub with great agricultural importance, especially in the Mediterranean. Its fruits are edible and widely used for making oil. Olive has acquired quite a few symbolic meanings during its long history of cultivation. The most popular symbol would probably be the olive branch, which represents peace and glory.

A woody plant native to East Asia, the japanese maple features hand-shaped leaves with five-pointed lobes that resemble the palm of a hand. It has been cultivated for millennia in Japan for bonsai creation. Extracts from the branches and leaves of this plant are used as medicine in Chinese traditional medicine.