Use mulch around your plants to prevent evaporation of water from the soil, and to keep the soil around plant roots cool.
Water early in the day when air temperatures are cooler to make sure the irrigation water you apply gets to the plant roots.
Erect temporary shade structures around heat-sensitive plants to prevent excess water evaporation from leaves. Wooden stakes placed a few inches apart on the side where sun exposure is greatest can help cool the plants and prevent heat damage.
Water deeply and less frequently to encourage deep root growth. The following advice pertains to established, mature plants:
- For lawns: Irrigate 3 times per week, for the length of time it takes to get moisture 6 to 8 inches into the soil. You may need to split your irrigation into multiple cycles to prevent run-off of water from your lawn.
- For annuals and perennials: Irrigate 2 times per week, for the length of time it takes to get moisture 8 to 12 inches into the soil.
- For shrubs: Irrigate 2 times per week, for the length of time it takes to get moisture 12 to 18 inches into the soil.
- For trees: Irrigate once per week, for the length of time it takes to get moisture 18 to 24 inches into the soil.
Use a long screwdriver or soil probe to test the depth of water movement into the soil.
Use drip irrigation wherever possible to prevent excessive evaporation of irrigation water. Use multiple rows of dripline around trees, with at least 12 emitters per tree. Dripline should be placed at least 12 inches from the trunk, with a second row close to the edge of the tree’s leaf canopy.
Don’t worry if your lawn begins to go summer dormant in the excessive heat. Most lawns can survive 2 to 3 weeks of dormancy, and will green up again as temperatures cool.
For future drought years, consider replacing unnecessary lawn areas with plants that can better handle heat and low-water conditions.
Although summer is not the time to install new landscape plants, remember that new plants will need to be observed closely and watered regularly until they are established. You will know they are established when new top growth begins.
If you need help making your irrigation system more efficient, contact a QWEL (Qualified Water Efficient Landscaper) certified professional. Find one near you.
- Want to learn more about QWEL? Take a look at the videos below!
  - What is a QWEL Professional?
  - What are Hydrozones?

Stay Cool this Summer!

Kratsch, H. 2021, Tips for Keeping Your Landscape Plants Alive During a Drought, Extension, University of Nevada, Reno, Blog

Learn more about the author(s)

Heidi Kratsch

Also of Interest:


*Watering Trees in Hot, Dry Home Landscapes* Droughts in the western U.S. are becoming more frequent and severe. They are particularly hard on our trees. Learn how to properly water your landscape trees, lower your monthly water bill and keep you home and landscape cool and livable. Kratsch, H. and Jensen, C. 2023, Extension, University of Nevada, Reno, IP-22-02
*Collaborative Modeling to Assess and Enhance Community Climate Resiliency* Creating effective community responses to improve resilience to extreme climate events, such as prolonged drought, requires acknowledging and understanding the interaction between human and natural systems. Singletary, L. 2016, Extension \| University of Nevada, Reno, Fact Sheet FS-16-04
*Costs and Returns of Pomegranate Production in Southern Nevada* This publication is intended as a guide for potential growers interested in pomegranate production, as pomegranates are becoming highly marketable. The pomegranate serves as both a fruit crop and an ornamental and is well suited to the soils and climate of southern Nevada (Robiso... Bishop, C. 2015, University of Nevada Cooperative Extension
*Markets for Nevada Native Plants & Seeds* The proposed cooperative would be organized to grow, process, package, and market native Nevada plants, grasses, and forbs. Native seed production and collection is still in its infancy in Nevada, and as such, the local market for native products has not been fully explored. Cowee, M. and Curtis, K. 2007, University of Nevada Cooperative Extension
*Nevada's Weather and Climate* Weather and climate are related, but they are not the same. The difference between weather and climate is time. Practically speaking, weather determines which clothes you decide to put on today, but climate determines the type of clothes that are in your closet. Ormerod, Kerri Jean; McAfee, Stephanie 2017, Extension \| Fact Sheet 17-04

Associated Programs

Qualified Water Efficient Landscaper (QWEL)

Training will provide participants with local water, soil and plant information, basic and advanced irrigation principles and hands-on water audit skills they can use in the field

Master Gardeners of Washoe County

Master Gardeners provide free, research-based horticulture information to Nevadans.

Living with Drought

The program connects stakeholders with drought status information, essential research, and tools that can be used to help address and assess the impacts of drought in Nevada.

Tips for Keeping Your Landscape Plants Alive During a Drought

Use mulch around your plants to prevent evaporation of water from the soil, and to keep the soil around plant roots cool.
Water early in the day when air temperatures are cooler to make sure the irrigation water you apply gets to the plant roots.
Erect temporary shade structures around heat-sensitive plants to prevent excess water evaporation from leaves. Wooden stakes placed a few inches apart on the side where sun exposure is greatest can help cool the plants and prevent heat damage.
Water deeply and less frequently to encourage deep root growth. The following advice pertains to established, mature plants:
- For lawns: Irrigate 3 times per week, for the length of time it takes to get moisture 6 to 8 inches into the soil. You may need to split your irrigation into multiple cycles to prevent run-off of water from your lawn.
- For annuals and perennials: Irrigate 2 times per week, for the length of time it takes to get moisture 8 to 12 inches into the soil.
- For shrubs: Irrigate 2 times per week, for the length of time it takes to get moisture 12 to 18 inches into the soil.
- For trees: Irrigate once per week, for the length of time it takes to get moisture 18 to 24 inches into the soil.
Use a long screwdriver or soil probe to test the depth of water movement into the soil.
Use drip irrigation wherever possible to prevent excessive evaporation of irrigation water. Use multiple rows of dripline around trees, with at least 12 emitters per tree. Dripline should be placed at least 12 inches from the trunk, with a second row close to the edge of the tree’s leaf canopy.
Don’t worry if your lawn begins to go summer dormant in the excessive heat. Most lawns can survive 2 to 3 weeks of dormancy, and will green up again as temperatures cool.
For future drought years, consider replacing unnecessary lawn areas with plants that can better handle heat and low-water conditions.
Although summer is not the time to install new landscape plants, remember that new plants will need to be observed closely and watered regularly until they are established. You will know they are established when new top growth begins.
If you need help making your irrigation system more efficient, contact a QWEL (Qualified Water Efficient Landscaper) certified professional. Find one near you.
- Want to learn more about QWEL? Take a look at the videos below!
  - What is a QWEL Professional?
  - What are Hydrozones?

Stay Cool this Summer!

Published by: Kratsch, H., 2021, Tips for Keeping Your Landscape Plants Alive During a Drought, Extension, University of Nevada, Reno, Blog