Arlington County is currently experiencing abnormally dry conditions, which are impacting all of our trees. Even mature trees can decline, and you can save on future tree care costs by helping your trees out now.
What You Can Do
- The best time of day to water is early morning and late evening. You can estimate that about two gallons of water flow through a typical garden hose per minute. Therefore, you should water newly planted trees for at least three minutes. Run sprinklers a bit longer.
- Both young and mature trees can benefit from extra water. Water young trees 25 gallons a week. Water mature trees during drought, by laying a garden hose over the roots, and letting it water at a low setting, for 30 minutes a week.
- Take responsibility of trees in public spaces near your home. We often encourage residents to help us with watering. If a homeowner chooses to help, we recommend one week after the last watering. Simply, place the hose in the opening at the top of the bag and fill until the bag is full. Gravity will take care of the rest.
- Keep young trees mulched with wood chips or leaf mulch; don’t place mulch in direct contact with trunks
- Please do not fertilize the trees. The only thing they need after planting is water. The salts in the fertilizer can dry out the roots.
- Check local non-profit Casey Trees’ weekly watering alerts, to find out when watering is needed, and learn the best techniques: https://caseytrees.org/