American arborvitae

American arborvitae (Thuja occidentalis 'Holmstrup') should be watered deeply and Infrequently. During the first growing season, water the plant frequently enough to keep the soil evenly moist but not soggy. During dry periods, water weekly. After the first year, water the plant deeply once a week or as needed to keep the soil consistently moist but not soggy.

American arborvitae (Thuja occidentalis 'Holmstrup') grows best in full sun, meaning at least 6 hours of direct sunlight per day. During the summer months, these plants should receive full sun from around 9am to 3pm which should cover the minimum of 6 hours per day. During the winter months, American arborvitae will benefit from morning sun as well as afternoon sun. For optimal growth, the plants should receive at least 6 hours of direct sunlight per day.

American arborvitae should be pruned lightly each year during the late summer months and in the fall once the new growth has hardened off and is no longer actively growing. The amount of pruning required depends on the desired shape or size of the shrub, but it should generally be between 10-20% of the total growth. It is a good practice to remove any broken, dead or damaged branches, as well as any that are crossing or rubbing against each other. Pruning can help to maintain desired color and texture of the shrub and improve its overall look.