1. Select a watering method that is best for you.
Oscillating Sprinkler: Leave the sprinkler on for 2.5 to 4 hours depending on spray pattern and size of root ball per section. Make sure to overlap each section.
Impact Sprinkler: 90 degree angle with short spray pattern, water for 1 to 2 hours. 180 degree angle, water for 2 to 3 hours.
Hose Trickle: Place the end of your garden hose on top of the root ball and allow water to trickle at a moderate rate for about 30 minutes to an hour depending on the size of the root ball.
Soaker Hose: Make sure water hits each root ball. Also, make sure the holes are not clogged. Let run for 3 to 4 hours.
Watering Can or Bucket: It may take 5 to 8 pails to fully water each plant to the depth of the roots. Pour slowly and make an earth saucer around the base of the plant to catch the water.
2. Watering Times
Watering times will vary depending upon: outside temperature, amount of sunlight, soil type, size of root mass, rainfall, and a plants’ particular water requirements.
Container Shrubs (1 gallon or smaller) Every 3 to 5 days
Container Shrubs & Trees (2 to 15 gallon) Every 7 to 10 days
Container Shrubs & Trees (20 to 45 gallon) Every 10 to 15 days