Thirsty Trees in the Summer Heat
The Ainsworth Linear Arboretum hosts many trees with various tolerance for water stress. The two newest trees have some support from City watering crews, but after a couple years, the tree has to make it on its own.
If you see a tree in distress in the median, please consider hauling a bucket or two of water and pouring it slowly into the mulch next to it. And be sure to give your own trees the same good drink, especially during the heat and dry spells.
Are you up for being a water steward if someone points you in the right direction? Let the Tree Team know!
TIPS FOR WATERING
From Friends of Trees: New Tree Care Guide— https://friendsoftrees.org/news-resources/tree-care-guide/#watering
Water slowly to allow saturation into the soil
Use mulch to retain soil moisture
For new trees, water 10-15 gallons once a week in summertime and dry spells
From the City of Portland’s Urban Forestry— https://www.portland.gov/trees/establishmentcare#toc-watering
“Watering a tree deeply about once a week is generally better than providing a shallow watering more often. Deep watering encourages roots to grow deeper, and deeper roots do not dry out as quickly as surface roots.”
“It can take up to five years for a newly planted tree to establish itself in its new environment. Watering once a month or so for 2-3 years after the first 2-3 years is recommended for optimal tree health.”
