Plectranthus ernstii

Taxonomy

Plectranthus ernstii is a compact, frost-tender, semi-succulent herbaceous perennial that grows up to 25cm tall. Its stems are swollen, jointed, and can reach up to 5cm in diameter at the base. The leaves are aromatic, slightly hairy, and have an ovate to triangular shape with rounded teeth. During summer, this plant produces flower spikes up to 12cm long, bearing small, two-lipped, pale lilac to whitish flowers with darker markings. This rare houseplant, also known as Bonsai Mint, requires regular watering to thrive. It thrives best in long-lasting, direct light and should be positioned less than 1 foot away from a window. Well-draining soil is ideal for Bonsai Mint. Additionally, it is recommended to repot the plant each time it doubles in size, eliminating the need for added fertilizers.

How to care for Plectranthus ernstii

Difficulty

Plectranthus ernstii requires a bit more attention and knowledge to thrive, making it a suitable plant for those with some gardening experience.

Water

Plectranthus ernstii should be watered regularly, allowing the soil to dry out between waterings.

Soil

Plectranthus ernstii loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

Lighting

Plectranthus ernstii requires abundant, bright and direct light. Placing it less than one foot from a window is the best way to make sure the plant receives enough light to survive and thrive. Depending on your region, however, the current weather can affect the placement of the plant in your home. For example, in some areas the sun may be too direct and intense, so it's best to place it farther away from the window. You may also need to adjust your placement according to the season as the sunlight can change intensity over the course of the year. If you live in a region with significant temperature fluctuations, such as a desert, you may need to place the plant a bit farther away from the window to avoid extreme heat or cold. With some care and attention, your Plectranthus ernstii will be sure to bring you many years of beauty and enjoyment.

Toxicity

Ploi does not possess verified information regarding the toxicity of this particular plant. In the event that you, a member of your family, or a pet ingests plant material with an unclear toxicity level, it is highly recommended to seek the advice of a medical professional.

Humidity

The Plectranthus ernstii does not necessitate supplementary humidity. Plants primarily absorb water through their roots, rather than their leaves. Hence, the most effective way to supply humidity to your plants is by watering the soil.

Fertilizer

The Plectranthus ernstii should be transferred to a new pot once it has increased in size two-fold, or on an annual basis, whichever occurs earlier. Replacing the soil with fresh potting soil containing all the necessary nutrients, is sufficient enough to support the growth of the plant, thus avoiding the need to use fertilizer. It's important to note that plants derive their energy from the sun and not fertilizer.

Region of origin

Plectranthus ernstii’s native range is Tropical Africa and Madagascar.


More info:
Wikipedia