Winter Watering Suggestions for Residents:

Tree root systems can spread two to three times wider than the height of the tree, with most absorbing roots located in the top 12 inches of soil. Water should be applied within the tree’s dripline (the critical root zone shown in the picture below). For newly planted trees, focus watering around the trunk and root ball, ensuring the surrounding soil is thoroughly moistened to support young roots.

Water trees slowly, moistening the soil to a depth of approximately 12 inches. Watering methods include a deep root fork or needle, soaker hose, or soft spray wand. Apply water at multiple locations beneath the dripline. If using a deep root fork or needle, insert the device no deeper than 8 inches into the soil.

To ensure the survival of the tree, apply approximately 10 gallons of water for each inch of the trunk diameter. For example, a tree with a 2-inch trunk diameter requires about 20 gallons per watering.

Mulch is also critical for conserving soil moisture. Apply organic mulch within the dripline at a depth of 2 to 4 inches. Turf should be removed prior to mulching. Leave a 6-inch gap between the mulch and the tree trunk. Recommended mulch materials include wood chips, bark, leaves, and evergreen needles.