Knowledgebase
Best time to deep root water large established trees #922557
Asked December 01, 2025, 11:39 AM EST
Jefferson County Colorado
Expert Response
Hi Lynne,
The Colorado State Forest Services recommends any time when the temperature is above 40 degrees and snow has melted. Below is the resource if you'd like to read more.
https://csfs.colostate.edu/2022/02/28/water-trees-in-winter-during-drought-conditions/
Thanks!