blue ash

Blue ash (Fraxinus quadrangulata) should be watered regularly during the summer months. During the first 2 weeks while the tree is establishing, provide supplemental water if your region has less than an inch of rainfall per week. After those 2 weeks, water when the soil is dry to the touch, approximately once or twice per week depending on the temperature. During hot summer days, water may also be needed more frequently. Make sure to saturate the soil when you water to ensure that the root system is receiving enough moisture.

Blue ash (Fraxinus quadrangulata) requires a full sun exposure, which means it should receive at least 6 to 8 hours of direct sunlight each day. This species is tolerant of partial sun exposures as well, so partial sun locations (at least 4 hours of direct sunlight each day) can also work. In temperate regions where summer temperatures reach 90-95°F, some afternoon shade may be beneficial. In northern climates, blue ash appreciates sun during the winter to help it remain evergreen.

Blue Ash (Fraxinus quadrangulata) should be pruned from late winter to early spring, before it begins to leaf out. Pruning should be light and selective, and limited to removal of dead or diseased branches. Overpruning can reduce leaf size and canopy coverage. For overall health and shape control, remove any cross-branches or downward-directed branches, as well as any branches that rub against each other. Overall, aim for a balanced structure of healthy, strong branches.