western hemlock

Western hemlock prefers moist, well-drained soil and grows best when it is watered deeply about once per week. Water when the top 2 inches of soil are dry. During particularly dry periods, water twice per week to help ensure the soil stays moist. To prevent diseases and other problems, avoid overwatering and allow the soil to dry in between waterings. Overwatered hemlock can suffer from root rot and other moisture related problems.

Western Hemlock (Tsuga heterophylla 'Thorsen's Weeping') grows best in full sun, or at least partial sun for part of the day. Ideally, this plant species should get at least 4 to 6 hours of sunlight each day for optimal growth and health. It is important to avoid too much direct sunlight, as this could lead to moisture stress and sunburn. So while full sun will help the Western Hemlock, it should not be too intense or too long in duration. In areas with intense sunlight, it's recommended that this species be placed in light shade or partial sun for part of the day.

Pruning of the Western Hemlock (Tsuga heterophylla 'Thorsen's Weeping') should be done annually in late winter or early spring before new growth begins. Prune to encourage plant growth, remove dead branches, or shape the plant as desired. Prune no more than 1-third of any single branch and thin any overcrowded branches to increase light penetration and air circulation around the plant. Remove broken or diseased branches and those that are crossing or rubbing against other branches. Doing so will promote growth and reduce susceptibility to pests and diseases.