Oregon Ash

Oregon Ash should be watered regularly. During the growing season (spring and summer) an Oregon Ash should receive 1-2 inches of water per week. To achieve this amount, the tree should be watered deeply, allowing the water to thoroughly penetrate the soil. This watering should be repeated once a week, or more frequently during dry periods. During the winter, when the tree is dormant, watering should be reduced and done once every 4-8 weeks. To ensure that the tree is getting sufficient water, check the soil for moisture every 2-3 weeks. If it is dry several inches below the surface, then the tree should be watered.

Oregon Ash plants typically enjoy about 8–10 hours of direct sunlight each day, with some tolerance for either side of this range. When you’re planting your Oregon Ash, ensure that its spot gets at least 6 hours of sunlight a day. For maximum growth, the plant should receive full sunlight most of the day - around 8 to 10 hours, especially during the warmer parts of the year when the days are long.

Oregon Ash should be pruned annually in the late winter to early spring to maintain its size and shape. Prune branches back to the point of origin and remove any dead, diseased, or damaged branches. If Oregon Ash is left unpruned, it can grow up to 65 feet tall and has a wide, spreading canopy. Make sure to use sharp, clean pruning tools, and when pruning multiple branches, start with the most interior shoots first. If pruning large or more than 1-third of the canopy, prune in several sections with time in between each pruning session to avoid stressing the tree. Oregon Ash is a fast-growing tree and can benefit from additional pruning throughout the year, if needed.