western poison oak

Western poison oak (Toxicodendron diversilobum) should be watered as needed; usually about once a week. On hot days, monitor the soil moisture and water more frequently. Be sure not to water the plant so much that it is in standing water after watering. Some soil moisture is ideal, but too much can lead to root rot or other plant diseases. The best time to water is in the early morning when the sun is not too hot. Water slowly and evenly so the soil can absorb the moisture.

Western poison oaks (Toxicodendron diversilobum) grow best in full sunlight, meaning a minimum of 6 hours of direct sunlight per day. Too much shade can slow the growth of the plant and inhibit the development of mature foliage. Between May and September, the sun is usually at its highest point in the sky and Western Poison Oaks should be exposed to full sun during these months. In spring, the sun tends to be more oblique and as a result, Western Poison Oak may not receive as much direct sunlight as it would in the summertime. They should still be exposed to direct sunlight, however, even at this time of the year.

Western poison oak (Toxicodendron diversilobum) should be pruned during its dormant season from late fall to early spring. Pruning should be done lightly when dealing with this species, as vigorous pruning can damage the plant if done incorrectly. It is best to prune small amounts at a time, no bigger than 25-30 percent of the total size of the plant. This will help keep it healthy and its shape manageable.