American elm

American elm (Ulmus americana 'Princeton') should be watered on a weekly basis, particularly during the first 2 years after planting. Make sure to water deeply and slowly, to allow the roots to absorb the water and prevent runoff. Depending on your climate, plants may need anywhere from 1-2 inches of water per week. In times of drought, more water may be necessary. However, make sure not to overwater your American elm, as this may lead to root rot. It is best to water in the morning, so that the foliage has time to dry before nightfall, which will limit any fungal growth.

American elm (Ulmus americana 'Princeton') needs 6-8 hours of direct sunlight every day and should be grown in full sun locations. During the cold winter months, it should receive a minimum of 4 hours of direct sunlight each day. In spring and fall, they should receive up to 8 hours of sunlight but, if possible, should be protected from strong winds. During the summer, they should not receive prolonged periods of direct sunlight or the foliage may suffer from sun scald.

Pruning American elm trees (Ulmus americana 'Princeton') should begin in the late summer season when the tree has finished growing for the year. Pruning should focus on removing any dead, diseased, or damaged branches as well as branches that cross or rub against each other. More aggressive pruning can then be done in the early spring before the tree begins to bud. Remove any branches or suckers that grow from the base of the tree and any branches that are weak or rub against the main trunk. Also, if any branches are too large, they can be cut back to a smaller branch to promote healthy growth. Prune up to 1-third of the total leaf canopy at a time, as this will help the tree maintain a strong framework. Prune the tree from the bottom up, removing branches evenly from all sides.