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Coleus barbatus, Plectranthus barbatus

USDA Plant Hardiness Zone Map

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Coleus barbatus, commonly known as Coleus forskohlii or Indian coleus, is a tropical perennial plant that is primarily grown for its medicinal properties and attractive foliage.

Coleus barbatus is relatively easy to cultivate, and it's often grown as an annual in cooler climates or as a perennial in warmer regions. In colder climates, Coleus barbatus can be grown as an annual or brought indoors before the first frost. It makes an excellent indoor plant if provided with adequate light and warmth during the winter.

Coleus scutellarioides, Solenostemon scutellarioides, Plectranthus scutellarioides, Coleus blumei verschaffeltii

This is a very reliable and predictable coleus that doesn't "drift". Growth Habit: Upright. Mature Height: 2 to 3 feet. Colorful Spring to Fall. Recommended Light: Full sun to light shade. This plant has an improved tolerance to high light intensities and a higher heat tolerance than most Coleus. Foliage is a very attractive and it keeps its color throughout the season. A great plant for foliage color.

Solenostemon amboinicus, Coleus amboinicus, Plectranthus amboinicus

The Solenostemon amboinicus, or Allspice as it is commonly known, is a groundcover and low-growing plant native to tropical America. This ornamental foliage is arguably one of the most fragrant with its spicy accents, making it popular for culinary purposes. Growing to a height of about 2 feet, the Allspice prefers semi-shade and moderate water and is ideal for mixed containers and patio planters. It is often used in Thai beef salad and is used to give various Cajun and Creole dishes a unique flavor.

The Allspice can flourish in USDA zones 9-11. Soil should remain moderately moist, and the plant should be placed in an area that receives a combination of full sun and partial shade. It can also be grown as a houseplant because of its attractive foliage and bright green stems.

In colder climates, the Allspice can be grown in pots and other containers. To ensure their best growth, the soil should be well-drained, light and nutrient-rich. During the winter, the plants should be kept in protected areas, such as a greenhouse or cold frame. The containers should be moved to an area of the house that receives plenty of indirect light and be watered regularly.

Plectranthus argentatus

Plectranthus argentatus (Silver Plectranthus) is a bushy or semi-trailing perennial native to Australia. This plant can easily make a stunning specimen in any garden, with its large felted silver leaves and candelabras of coleus-like flowers, in colors such as white, off-white, shades of blue, lavender, and purple. Not only are the blooms beautiful, but they also release a fragrance that can be likened to spices or herbs.

To thrive, Silver Plectranthus does best when planted in full sun or semi-shade, and requires regular or moderate watering, depending on the climate. The plant is hardy to USDA zones 9-11, so it can be grown outdoors if the climate permits it. Colder zones can also support Silver Plectranthus by growing them in decorative containers and ensuring a regular watering routine with good quality potting soil, but avoid overwatering. The soil should be kept moist, yet drainable, and pruning is recommended if the growth becomes too leggy. To maintain a container plant, it should be given a quality fertilizer and repotted every two years, as well as deadheaded and protected from frost.

Regardless of the climate, Silver Plectranthus is a robust, low maintenance plant that is relatively unstressed by pests and disease. Its showy foliage, vibrant blooms, and fragrant scent make it an essential feature in any garden. It is the perfect drought-tolerant plant that will make a captivating addition to any outdoor area!

Plectranthus tomentosus, Plectranthus hadiensis var. tomentosus

Plectranthus tomentosus is a perennial, succulent-like herb or branched subshrubs with aromatic leaves spreading approximately 50-75 cm round. It is commonly known as the "Vicks Plant" for its leaves that smell like Vick's Vap-O-Rub or mentholatum when crushed.Grows in savanna and dry forested regions. It is used to treat intestinal upsets. The flowers are white to light purple, and exceptionally attractive to honey bees. Give this one room, as it can spread to three of four feet across. Prune back by half every six months to reduce woodiness. Has a strong camphor aroma overlaying. Excellent in herb mixtures (usually very hard to find). Very fast growing - ideal for filling empty spots. The plant prefers dry conditions, very drought tolerant.