American arborvitae

American Arborvitae should be watered deeply once or twice a week. Aim to water at least an inch (2.5 cm) of water per week. Make sure the soil feels moist, but not soggy. For larger plantings, a slow, steady stream from a hose or watering can is preferred. During the hot summer months, the plant may need extra water about 3 times a week. In the winter, watering should be reduced and only done when the soil feels dry. Additionally, providing adequate drainage for the root system helps to prevent overwatering.

American arborvitae, also known as Thuja occidentalis 'Techny', requires full sunlight for best growth. It will grow well in partial shade as long as it receives 6-8 hours of full sunlight every day. Full sunlight will help it reach its full potential, so if the plant is located in an area that gets full sun, it will likely grow bigger and healthier. It is important to remember that sun intensity can vary depending on the season and the type of sunlight exposure. Direct morning sunlight is said to be best for American arborvitae.

American arborvitae should be pruned once a year in late winter or early spring. Pruning should be light and limited to removing dead or diseased branches and thinning out dense clusters of shoots. Heading cuts are not recommended, as they will produce weak, distorted and unsightly growth. Pruning can be done with hand pruners, hedge shears, or a pole pruner. Long-handled pruners can reach higher into the plant for larger branches.