Caucasian wingnut

Water the Caucasian wingnut (Pterocarya fraxinifolia) once or twice a week, depending on the weather conditions. During hot, sunny days, water the tree more frequently, while during rainy days, the tree may not need to be watered. The soil should be damp but not soggy. Check the soil around the tree every few days to make sure it is not bone dry. If it is, provide a deep watering session until water runs out of the drainage holes of the pot. Then cease watering until the soil is dry but not bone dry again. During the growing season, typically spring and early summer, water the tree more often. When the tree is in dormancy in winter, reduce the amount of watering.

Caucasian wingnut (Pterocarya fraxinifolia) grows best in full sun. It needs an average of 6 hours or more of strong, direct sunlight every day in order to maximize photosynthesis and flowering. Ideally, the hours should occur within the mid-morning to late afternoon hours and then be offset by some shade in the evening. Partial sun also can work for this species in cooler climates, but full sun promotes growth and optimal flowering.

Caucasian wingnuts should be pruned in late winter or early spring, before any new growth appears. Pruning should be light and should focus on removing dead, diseased or damaged wood, as well as thinning out overcrowded branches. Remove any branches that interfere with the desired shape of the tree, or any that are crossing or rubbing against each other. Cut off any upright branches that are too long or spindly. Do not leave stubs or jagged cuts, as these can lead to disease. Aim for a shape and silhouette that is pleasing to the eye.