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Your January Landscape Watering Reminder

Post Date:01/03/2019 6:40 PM

Last weekend’s rain was a great start (most areas got .25- to .5-inch of rain) and we’re expecting more rain this weekend. Between the rains and the cool temps, you could turn off your controller for a few days or longer. Use the 'off' 'stop' or 'rain' setting on your controller to stop the watering cycle without disturbing your programs. See the bonus tips below about getting a Smart irrigation controller.

Leaf yellowing or leaf drop occurs naturally this time of year to plants such as palo verdes, mesquites, desert willows, elms, ash, and Texas sage. Leaf-litter provides beneficial mulch for your plants or use the leaves in your compost pile.  Mesa offers our residents a $5 compost bin made from a repurposed trash container.

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

Lawn watering

  • Summer grass (dormant Bermuda) - once every 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, and vine watering

  • Desert Adapted - once every 30 days
  • High Water Use - once every 14 days

Cacti and succulent watering – if needed

Annuals watering - once every 10 days

Wildflower watering – once every 15 days if needed

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


There's still time to TREEcycle! Christmas tree recycling drop-off sites will be open through January 20th.

EAST VALLEY CITRUS CLINIC University of Arizona faculty and Master Gardeners and industry experts teach you all about citrus and more on Sat, Jan. 12, 8:30 a.m. to Noon at Greenfield Citrus Nursery in Mesa. Learn about all aspects of growing citrus, fruits and nuts in the Valley. Rain or shine. Tasting table and 102 citrus varieties on display.

FREE SEED SHARE and Q&A with Catherine the Herb (and Vegetable) Lady, Feb. 7, Mesa Main Library 5:30 p.m. February is the perfect time to get your tomatoes, basil, peppers, melons, spring corn and more, sown and started. Catherine, The Herb Lady will answer questions on the whys and hows of sowing your spring and summer garden at this seasonal lecture hosted by the Mesa Urban Garden.

Registration IS Now Open for SRP’s 12th Annual Water Conservation Expo! Sat. Mar. 2, at SRP’s PERA Club. SRP water and power customers can purchase a SMART controller, attend a class and learn from exhibitors. This year there are two controller options to purchase, 1. Rain Bird ESP-SMTe for $60 ($368 value) or 2. Rachio 3 Smart controller, Wi-Fi enabled for $60 ($229 value). Watershed Management Group will also be presenting on rainwater harvesting at the event. Expo is free but you must register to reserve a controller to purchase!

MESA URBAN GARDEN (MUG) – Is a community garden located near downtown Mesa at 212 E. 1st Ave. Check out their newsletter.

PROTECT YOUR PLANTS: If you want to be prepared for a cold snap, learn more in this University of Arizona publication.

**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 Web site or request a free copy of the booklet.

frost damage

         Leaves that wilt or looked burnt like these squash leaves are showing signs of frost damage.



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