Japanese zelkova

Japanese zelkova should be watered when the top inch of soil feels dry. During the growing season, water once a week to keep the soil consistently moist, but not wet. During the summer heat, water 2 to 3 times a week, as they are not drought-tolerant. In winter, you can reduce watering to only when the soil is dry. It is best to water the tree early in the morning, so the foliage can dry for the remainder of the day. Water at the base of the tree to help keep the leaves dry, as wet foliage can cause diseases. When you water, allow the water to penetrate the roots and not just run down the sides of the pot. Water until water comes out the bottom of the pot.

Japanese zelkova (Zelkova serrata) grows best in full sunlight or partial shade. This species prefers to be in full sun for at least 5 to 6 hours a day. Morning sunshine is essential for the proper development of the tree and should last no longer than mid-afternoon, as this is when the temperature is at its highest. More sun is beneficial, but it is important to ensure that the plant is not exposed to the extreme heat of the afternoon sun or it can become stressed.

Japanese zelkova (Zelkova serrata) should be pruned annually in late winter or early spring, when the tree is still dormant. Pruning should focus on removing dead, diseased, damaged or crowded branches and removing any suckers or watersprouts. Weak branches should also be removed or thinned to promote stronger growth. Pruning should generally be light, with no more than a third of branches removed in any single pruning session. This species of tree should not be heavily pruned, as it may not respond favorably and could become susceptible to disease if over-pruned.