Galleta, Pleuraphis syn. Hilaria jamesii

Galleta, Pleuraphis syn. Hilaria jamesii

Exposure: Full Sun

Water: Low

Height and Spread: 14" x 14"

Blooming Season: Fall

This bunchgrass is a warm season native grass used in reclamation plantings for erosion control in rural landscapes. It is recommended to seed with other prairie seed mixes because it is slow to establish. Once established it can withstand extreme temperature variations, drought and heavy traffic.

Photography Courtesy of Plants of the Southwest.

Use Drip Irrigation for your Trees and Shrubs!

Use Drip Irrigation for your Trees and Shrubs!

Drip irrigation systems play an important role in desert-friendly xeriscapes. When properly designed, installed and managed, drip irrigation efficiently maintains the optimal range of moisture in the soil. It applies water in precise quantities, to the right depth and on a set schedule. Installation and modifications are easy to do and relatively inexpensive.

Drip irrigation is the recommended method of delivering water to shrubs, trees and all other plants that are not considered turf grasses. When using drip irrigation there are a few things to keep in mind to make sure you are watering as efficiently as possible. 

Below are some “Rules of Thumb.”

  • Grouping plants of similar water needs on the same drip line makes establishing and maintaining plants much easier. This is called hydrozoning.
  • Drip emitters should be placed where the backfill meets the root ball. Larger plants need several higher than normal flow rate emitters to water the transplanted roots plus the backfill. Water needs to penetrate the soil deep enough so that the entire root ball plus the soil below the roots are wet.
  • To grow a healthy tree, add ground covers, ornamental grasses and/or shrubs. They act as a supportive network around a tree so the tree roots can grow from one irrigated spot to another, sharing water with all the plants under and beyond its canopy.
groundcovers under trees
Shrub and groundcovers under a healthy tree.
  • The length of time it takes for plants to become well- established varies greatly and depends on the species of the plant and the site conditions. The best adapted, fastest rooting plants may become well-established in one or two growing seasons. Some plants — such as those in extremely hot or exposed windy locations — may take three to five years of weekly watering during the summer before the quantity of water they need can be reduced. 
  • For the first month or two after planting, keep the drip lines running once a week for 45 minutes at a time. If there's no rain and the temperature push 100 degrees for many days in a row, you may need to water every 4 to 5 days. After a few months, you can follow the watering recommendations offered in the Water by the Seasons chart. For plants to get properly established, it is important that water penetrates the soil at least 6 inches deeper than the roots of the new plants.
  • Once your trees and other plants are established, the best way to efficiently water your trees and plants and maintain a healthy landscape is to follow the Water by the Seasons recommendations shown below.
Grab a .pdf of the Watering Recommendations for your fridge here.
Author: Richard Perce, Irrigation Efficiency Specialist with the Water Conservation Department for the Water Authority.  Have a question about the article? [email protected]
Make this the year that you replace your thirsty lawn with a desert-friendly xeriscape.

Make this the year that you replace your thirsty lawn with a desert-friendly xeriscape.

Current Drought conditions mean even more water will need to be used for your high-water use lawn to remain healthy. If you have been thinking about transforming your lawn into a desert friendly xeriscape there is no better time to do it than right now! These types of landscapes are more resilient to climate variability and can provide for up to 30% in water savings or more. Rebates of $1.00 per square foot are available for our residential customers. Certain restrictions apply, and your plans must be approved in advance by Water Authority staff so don’t start removing your lawn until you have submitted an application and contacted the inspector. Learn about our Xeriscape rebate here and get the link to the application portal.

Our expert staff can provide advice and free resources on how to start your beautiful xeriscape transformation. If your application is approved an inspection will be scheduled to verify that your grass type is considered high water use and has sprinkler irrigation. The grass must be currently cared for at the time of the inspection to qualify for the rebate. The  inspection is a great opportunity to ask questions and get opinions from our xeriscape expert on various aspects of transformation projects such as plant selection, irrigation conversion and tips for saving money by doing it yourself or hiring a professional landscaper.

To remove your lawn we recommend using a sod cutter because it’s a fast and effective, chemical-free method to remove your lawn.  Many local equipment rental companies rent sod cutters. Approved participants of the xeriscape conversion rebate program may receive 25% up to $100 in rebate off the cost of renting equipment like a sodcutter or skidsteer for removing grass. Before removing the lawn, make sure the soil is not too wet or too dry. Set the cutting blade depth at the shallowest setting necessary on the sod cutter to help retain as much valuable soil on site as possible. The removed sod should be recycled at one of our local composting facilities. One advantage of using a sod cutter is that it is chemical-free, fast, and you can continue with the next step of your project on that same day.

Please note: This method is not recommended for lawns that have mature trees. Sod cutters can damage shallow, fine-hair feeder roots that are critical for water and air uptake.  Sod cutters are also not recommended for lawns with Bermuda grass due to the nature of its rooting system. For these cases you might want to consider herbicides. Take advantage of our free ask an expert email service if you have questions about what type of lawn you have or any other questions about xeriscape transformations.

Additionally, xeriscape rebate participants get 25% off the cost of installing bulk organic mulch up to $100. Not only is organic mulch such as shredded wood chips, aesthetically appealing, it provides numerous other benefits. Mulch increases moisture retention in the soil, encourages healthy root establishment, and greatly reduces weeds. A 3”-4” thick layer of organic mulch and drip irrigation are two of the best tools we have for keeping our landscapes healthy and resilient in times of drought.

Check out the Desert Friendly Xeriscape Rebate page to learn more about the qualifications, requirements and process to apply for this generous rebate. You may also contact our xeriscape specialist Amos Arber, at [email protected]  or 505-208-2015

Author: Amos Arber, Xeriscape Incentive Inspector, and Certified Arborist for the Water Conservation Department of the Water Authority. Have a question about the article? [email protected]
Crocus spp. Crocus

Crocus spp. Crocus

Exposure: Sun/Shade

Water: Medium

Height and Spread: 6" x 6"

Blooming Season: Spring

Description: 

The Crocus is a brilliant addition to any landscape. It is one of the earliest bulbs to arrive and provides the first color to your landscape. The Crocus fits well in most landscapes because it can be found in various colors and sizes. It is easy to grow and care for and will return the following spring. 

Irrigation season has begun, and there are three things to do in April!

Irrigation season has begun, and there are three things to do in April!

Spring is here, and it is a dry one. Remember that we are under a drought watch, which is no reason to panic, BUT it does mean we need to be much more careful with our water and aware of how efficiently we are using it in our yards.

This April, there are three easy activities you can do to help make sure your system is working more efficiently.

1. Double check your irrigation settings. Your plants are actively growing now. They need an extra drink of water to stay healthy, but it is important that we are not giving them too much. Your plants will do better with a deep watering done less frequently. Print out our Seasonal Watering Chart, which shows how often we recommend watering each type of plant. Water your lawn one to two times per week, your trees two times per month and your shrubs two to three times per month. 

Check with a screwdriver to make sure the water is reaching the roots but not going so deep that the roots can’t reach it. The proper depth is on the right side of our chart above.

2. Make sure that your trees and shrubs are watered around their drip line so they can efficiently use the water they are getting. This is where woody plants (trees and shrubs) are best able to take up water from the soil. If your emitters are at the trunk or base of your shrubs, your plants are not able to use all of the water you are giving them. You need to move the emitters out to the drip line, and you may need to add additional emitters. For example, if there are only two emitters serving a mature tree that needs over 400 gallons of water in April, it will be nearly impossible for that tree to get enough water to remain healthy without adding more emitters.

3. Because of the “stay at home” health order, many of us have been focusing on improving our yards. This is the perfect time to upgrade your irrigation system so you can water more efficiently.  You may only need to replace the nozzles on your sprinklers, or you may be looking at a complete yard transformation. By making changes sooner rather than later, you will benefit in three ways: You will save money sooner, probably have a better chance of getting into a contractor’s schedule if you need help and put less stress on your plants if the work is done in the cool spring weather rather than during the summer.

It’s also the perfect time to reach out to us for help. Send us an email at [email protected] to ask landscape questions or to arrange an appointment for a free consultation.

Author: Richard Perce, Irrigation Efficiency Specialist with the Water Resources Division for the Water Authority.  Have a question about the article? [email protected]