pin oak

Pin oak (Quercus palustris 'Pringreen' GREEN PILLAR) should be watered about once a week. It is preferred to give a deep but infrequent watering, meaning water the soil deeply and then let it dry out somewhat before watering again. This encourages the pin oak to form a root system deep enough to find sufficient soil moisture on its own. When watering, it should be done in the morning so that any excess moisture has time to evaporate before nightfall. Avoid wetting the foliage, as this can lead to fungal diseases. During periods of extreme heat and drought, it may be necessary to water a bit more frequently. Always check the soil before watering; if it still feels moist, do not water.

Pin Oak (Quercus palustris 'Pringreen' GREEN PILLAR) prefers full sun and does well in both dry and moist soils. It should receive at least 6-8 hours of direct sunlight per day for optimal growth and health. During the spring and summer months this tree can benefit from as much direct sunlight as possible, but be aware of stressing the plant with too much exposure. The tree can in fact suffer damage if exposed to extended periods of direct sun during the hottest parts of the day. During the cooler months, a few hours of direct sunlight throughout the day is beneficial.

Pin Oak (Quercus palustris 'Pringreen' GREEN PILLAR) should be pruned on an annual basis. Pruning should be done in late fall or early winter when the tree is dormant. Pruning should be done to maintain a strong central leader and to remove dead and damaged branches. Thinning out of the crown should also be done to reduce weight, open the canopy to allow for better air circulation, and to even out the canopy. Be sure to keep in mind when pruning that Pin Oak is a self-heading tree and its form should be left to naturally form.