During a drought, urban trees and other plants are often not able to let in the carbon dioxide they need without losing too much water in the heat. Many internal processes are put to work when plants become stressed because of drought conditions, which often leave plants vulnerable to pests.
The best way to care for your trees and other plants during a drought is to make sure that they are receiving enough water to photosynthesize and to effectively combat pests. The Tree Care Industry recommends this rule of thumb for watering your trees during a drought: homeowners should allot “five minutes of sprinkler time per inch of [tree] diameter once a week during the hot season”.
Here are some more tips for keeping your plants healthy during a drought:
- Add mulch around the base of the tree
- Replace turf under trees with organic mulch (improves soil aeration, helps retain moisture, increases nutrients to tree, removes competition from grass)
Preventative and proactive measures, such as watering your plants regularly and mulching properly, give your trees and plants their best chance at surviving another drought.