A newly planted tree is watered daily for the first 1 to 2 weeks, every 2 to 3 days from about week 3 to week 12, and then weekly until its roots are established. Each watering delivers 1 to 1.5 gallons per inch of trunk diameter, and only a soaking rain of more than 1 inch in a day replaces one.

Why does a newly planted tree need water so often?

Because digging removes most of its fine roots, leaving the root ball as its only water supply. Until new roots grow out into the surrounding soil, the backfill in the planting hole has to stay moist for those roots to spread.

How much water does a newly planted tree need each time?

The amount rises with trunk diameter:

• 1 inch trunk: 1 to 1.5 gallons
• 2 inch trunk: 2 to 3 gallons
• 3 inch trunk: 3 to 4.5 gallons
• 4 inch trunk: 4 to 6 gallons

Where should a newly planted tree be watered?

Directly over the root zone, keeping the planting hole's backfill moist. In clay or compacted soil, mixing TreeHelp Deep Water, a liquid wetting agent, into the watering at about 1 part to 1,000 parts water helps loosen hard pan soil so new roots can expand beyond the planting hole.

Frequently Asked Questions

Does a newly planted shrub follow the same schedule?

Yes. The timing is the same, with about a quarter to a third of the shrub's nursery container volume at each watering.

Can a water holding additive help between waterings?

Yes. The TreeHelp Moisture Help, a soil additive with gel crystals that hold water and release it to the roots as the soil dries, is placed in holes dug around the tree at about 1 oz for a 1 inch trunk.

How often can Deep Water be added to the watering?

The directions do not say. They give only the mixing rate, about half a teaspoon for a large tree.

How long does a tree with a 1 inch trunk need weekly watering?

About 1.5 years, until its roots are established.