As your landscape plants grow, they will require more water because bigger plants have larger root systems.
That’s why it's a good idea to check your landscape about once a year to see if you need to change how you water. You can increase the water you give your plants by:
Use Table A to see if you need to give your plants more water. Table B shows you the recommended amount and size of drip emitters for different-sized plants.
Example: You have a shrub that's four feet wide.
Using Table A: You will need 12 gallons of water each time you water it to soak the roots.
Using Table B: The recommendation is to use two or three 2-gallon-per-hour emitters for a four-foot shrub. If you choose to use two 2-gallon emitters, that means you’ll get 4 gallons of water per hour. If you run your system for 3 hours, you’ll get the 12 gallons needed. Remember, your plants can share water, so if you have a lot of plants close together, you might need to use less water for each one.
If your plants have larger root systems, they can hold more water. This means that bigger plants might need more water each time you water them, but you can water them less often. When you increase the amount of water, make sure to also adjust your controller to water less frequently. If you have desert-adapted trees, they might be able to survive on natural rainfall if it’s enough.