Suggested Watering Practices

For trees in the yard here is a method to water them.

Watering for the First Year
In the first growing season, all new plants (including drought resistant ones) need extra water to allow them root into the surrounding soil.  Make sure to deep soak the plants enough with either a sprinkler on a hose or bubbler; that your soil is moist to 12 inches below the surface of the dirt a day after you have watered.  You want your moisture to soak in this deep so that your plant’s roots develop deep and can handle not being watered for a few days in case there are problems with your irrigation system. If in doubt, you need to dig down with a shovel, trowel or use a soil probe to make sure you are soaking in deep enough.

Here is a general deep soaking schedule for sand loam soil is (listed by day time high temperatures)  

First year
50˚F or less twice a month for evergreens, check 2 months for deciduous plants
50 to 70˚F soak once every weeks after foliage emerges on deciduous
70 to 85˚F soak twice a week
85 to 95˚F soak three times a week
Above 95˚F soak every other day.
After all wind storms when temperature highs are above 85˚F go check.

Second year
50˚F or less once a month for evergreens, check 2 months for deciduous plants
50 to 70˚F soak once every two weeks after foliage emerges on deciduous
70 to 85˚F soak once a week
85 to 95˚F soak twice a week
Above 95˚F soak three times a week
After all wind storms when temperature highs are above 85˚F go check.

Remember to check your sprinklers, filters and drip emitters regularly.  A plugged sprinkler or drip emitter will not a water a plant adequately, if at all.  Also to prevent fungal disease, try to not to water going into the night or do nightly waterings of your lawn.