Tetrastigma

Tetrastigma does not need to be watered heavily, but nor does it like to be left with dry soil. The best plan of action is to keep soil moist but not wet. When watering, it is recommended to drench the soil all the way through and allow the top few inches to dry out before watering again (monitor for immediate signs of water-logging). Water it less in the winter months. As a general rule, water when the soil is nearly dry for best results.

Tetrastigma is considered a ‘low light’ houseplant and can survive in moderate to bright indirect light, or even in some part shade conditions. However, while it can survive this level of light, it will thrive best in bright, indirect light. Taking the time to locate your plant in a bright spot will pay off with healthy leaves and an upright, bushy habit. Though it will not tolerate direct sunlight, it can be placed in a southern-facing window. You might need to keep it slightly further away from this window in the summer, as even a bright windowsill could potentially be too hot for the plant.

Tetrastigma prefers tropical temperatures, between 65F and 90F (18C-32C). It can tolerate cooler temperatures in its non-beauty rest periods, but temperatures outside should be kept above 50F (10C)

Though it prefers moderately high humidity, it is rather tolerant of drier air. For best results, it should be kept in a room that is kept between 40% and 50% humidity. Use a humidifier for high humidity or allow soil to dry out more between watering for lower humidity.

Tetrastigma prefers a light, airy potting soil and a slightly acidic to neutral soil pH. A good mix includes equal parts peat moss, compost, and either perlite or coarse sand, with a bit of coco coir added for extra aeration. Mix in some slow-release fertilizer for a nutrient boost.

Tetrastigma should be fertilized once a month during its active growing season in the late winter and early spring. An all-purpose or houseplant fertilizer is ideal for this plant, but ensure to dilute it to half-strength before use. During the rest period, reduce fertilizing to once every four to six weeks.

Common pests such as aphids, mealybugs, spider mites, and scale can infest this plant, although it is relatively pest-free. To avoid pests, make sure to inspect the plant closely when buying and bring it home without delay, as well as inspect it regularly once it is in your house. You can also check for pests with a magnifying glass. If pests are detected, take quick action to eliminate them. Use a combination of horticultural oil and insecticidal soap to eradicate the pests. Spraying the stems, leaves, and underside of the foliage will help protect your plant from further infestation.

Tetrastigma grows slowly and does not need to be repotted often, but should be moved into a slightly bigger pot every two to three years.This will maintain its health by providing some fresh soil and nutrition as it matures. When repotting, ensure the soil drains quickly, as it does not favor soggy soil.

Though it is not necessary to prune Tetrastigma very often or heavily, it is important to keep it maintained. Pruning should take place at the end of winter or beginning of spring when the plant is actively growing. Trim away any dead, broken or diseased stems and branches, or any coiled stems that have become overly twisted. This will encourage healthy, more upright growth.

When mulching Tetrastigma, be sure to use an organic, coarse material that will not compact when wet. Mulch keeps roots from drying out too quickly and retains moisture. Make sure to leave an inch between soil and mulch to prevent root rot.

Tetrastigma can be propagated easily with stem cuttings. Take 4-5 inch cuttings and remove any leaves near the bottom. Place the cuttings into moist, sterile potting soil and lightly cover with more soil to keep the cutting moist. Place the pot into bright, indirect sunlight and keep soil consistently moist. The cuttings should root in two to four weeks.

Tetrastigma can be trained to climb along a support such as a trellis, trellis wall, fence, or string. Make sure to provide enough clearance so the plant does not become damaged as it grows large.

Tetrastigma requires a resting period during the fall and winter months. During this time, reduce watering, fertilizer, and keep the plant away from drafty areas. This will help the plant rest and revitalize for its growing period toward the end of winter and early spring.

Tetrastigma is not considered toxic to pets and other animals when eaten.