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Your December Landscape Watering Reminder

Post Date:12/08/2017

Yes, some areas did get a trace of rain overnight on December 5, otherwise most areas last saw rain on August 23. It’s dry, dry, dry, and humidity has dropped and wind has picked up. This can also dry out your plants. Point is, while plant usage is at its lowest point in December, make sure you’re still irrigating, as your plants will fare cold temps and frosts better if hydrated.

Our typical first frost is around December 12, though we're already seeing unseasonably warm temperatures. But, it's still good to be prepared for a cold snap. Learn how to protect your plants from frost in a University of Arizona publication. For frost warning advisories, visit the National Weather Service Phoenix Web site and click on "Read watches, warnings and advisories."

Recommendations below are for plants that are established in the landscape (in the ground about 2 years).

Lawn watering

  • Summer grass (dormant Bermuda) - once every 21-30 days
  • Overseeded cool season grass (rye) - once every 10-14 days.

If trees and shrubs are on the same valve

  • Desert Adapted - once every 35 days
  • High Water Use - once every 18 days

Tree watering

  • Desert Adapted - once every 45 days
  • High Water Use - once every 21 days

Shrub, groundcover & vine watering

  • Desert Adapted - once every 28 days
  • High Water Use - once every 14 days

Cacti and succulent watering - if needed

Annuals watering - once every 7-10 days

Wildflower watering - once every 10-15 days

Note: These recommendations are a general guideline only and may need to be modified for your specific site conditions.

 +++ BONUS TIPS +++

Find Landscape Tips for December provided by the UofA Cooperative Extension. It is a helpful listing of maintenance activities with citrus, your lawn, vegetables, and see what typical questions Master Gardeners are answering this time of year.

BEAR GRASS is the Plant of the Month. Its graceful, mounding form attracts attention whether featured near a patio or swimming pool. Find details on this plant and more at Water – Use It Wisely’s Plant of the Month series.

Wondering what to do with your landscaping? Check out our Drab to Fab Backyard Rehab 10-part video series.

Thank you for being a subscriber this year... and for all of your efforts to save water! Be sure to also sign up for our Living Green Events EMAIL ALERT. These alerts notify subscribers of sustainable and green programs, events and opportunities. Go to our Email Lists page and select "Living Green Events" and follow instructions. Or, you can follow us on Twitter.

Reduce your landscape watering 30 to 50 percent by adjusting your irrigation each season "Landscape Watering by the Numbers: A Guide for the Arizona Desert" will help you determine how much water to apply and how long to run your system. Visit the interactive website or request a free copy of the booklet at Water – Use It Wisely

Water Sense

When gift shopping for appliances or water-using fixtures, be sure to look for the WaterSense or ENERGY STAR label. These products are independently tested for higher efficiency and greater performance.



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