NC State Extension

Dealing With Drought

Key Points:

Image by Jessica Cross

Image by Jessica Cross

  • Don’t encourage growth:  no new plants, no fertilizing, no pruning, except to remove dead or dying branches.
  • Manage mulch:  Ensure all vegetable, flower and landscape beds have a 4″ layer of mulch to conserve water, keep soil temperatures cool, and prevent weeds from competing with desired plants. Consider mulching in a doughnut shape around trees and shrubs from the trunk to the dripline to prevent competition from turf, weeds and other plants. Keep mulch 6 inches from the base of the trunk.
  • Remove weeds: Prevent them from competing with plants for moisture.
  • Allow you lawn to go dormant:  It is much less stressful for the turf to remain dormant than it is to be active and drought stressed.
  • Remove plants that are past their prime or stressed by disease or insects.
  • Water Slowly to prevent run off. Consider installing an irrigation system, using soaker hoses, placing slow release watering bags, drilling small holes in multiple five gallon buckets or milk jugs and filling with water. Water the entire rootzone of the plant.
  • Infrequent, deep watering promotes deeper roots, and greater drought tolerance.
  • Harvest Rainwater in cisterns or rain barrels and use later in the landscape.
  • Make Notes of what dies, what survives, what steps were effective, what didn’t work.
  • After the drought consider transplanting plants to group those with like water needs to make it easier to care for them in the next drought.
  • Plan to make your landscape more resilient to drought conditions. Select drought tolerant plants to replace those that died. Since in addition to drought we also have flooding, select plants that are tolerant of both. Water-Wise Works
  • Learn to conserve water both inside and out. 40 Gallon Challenge, Water Use It Wisely, Water-wise Works!
  • Stay Informed:  NC Drought Management Advisory Council, State Climate Office of North Carolina
  • Plant Response to Drought:  Coping with Drought

Fruits and Vegetables

U.S. Department of Agriculture People’s Garden Initiative

U.S. Department of Agriculture People’s Garden Initiative

  • Keep the garden just large enough to meet your needs. Consider water restrictions before starting a vegetable garden.
  • Select crops that mature quickly and are drought resistant.
  • Incorporate compost into the soil to improve water permeability.
  • Install and manage a water efficient drip irrigation system or use soaker hoses to ensure water is applied directly where needed and slowly enough to soak in.
  • To maintain production supplement rainfall to ensure plants receive 1″ of water per week.
  • Take special care to avoid drought stress during germination, transplanting,  and fruit development.
  • Fruit and nut trees need adequate water from bloom until harvest for good fruit production.

Ornamental Plants

Image by Leo Suarez

Image by Leo Suarez

  • Reduce the amount of water used in your landscape by 20 – 40 percent or more by gradually (over a few weeks) decreasing the amount of water applied to lawns, trees and plants.
  • Continue to water through the winter as roots are growing even when plants are dormant.
  • Identify priorities for watering ornamentals:
    • Top Priority:
      • Trees and shrubs planted within the last 2 years will be most vulnerable to drought stress since their root system is not fully developed.
      • Established trees and shrubs are the biggest investment of time and money, have the biggest impact on landscape and house.
      • Rare or unusual specimen plants that would be difficult or expensive to replace and those with high sentimental value.
      • Evergreens:  Drought in the fall is particularly dangerous to evergreens like rhododendrons, boxwood, pine and spruce that lose water throughout the winter as cold winds pull moisture from their needles and leaves. Once the ground freezes, the plant can not pull in any more water through its roots until the ground thaws. If the plant is already drought stressed then needles and leaves may die. To prevent damage to evergreens ensure they receive an inch of water per week.
    • Medium Priority:
      • Drought sensitive plants like hydrangeas, Japanese maples, azaleas, and dogwoods that are unlikely to survive an extended drought.
    • Lowest Priority: (consider removing to conserve water for cherished plants)
      • Plants you don’t like and plan to replace;
      • Plants that are often stressed in your landscape;
      • Annuals are the least expensive, easiest to replace, and will die at the end of the season even if watered.
      • Plants in crowded beds.

Lawn

Design by Jay@MorphoLA

Design by Jay@MorphoLA

  • Limit turf to play and entertainment spaces. Lawns often require the most water, fertilizer, pesticide and maintenance in the landscape so use only where functional. Where turf is not essential replace with drought tolerant ground covers, mulch, deck or paths.
  • Install drought tolerant varieties adapted for your climate, for example Bermudagrass, Zoysiagrass.
  • Adjust watering schedule based on rainfall, heat and daylength.
  • Water in the early morning to minimize evaporation while also limiting disease potential.
  • Set mower to the highest recommend cutting height for your turf variety to slow growth, promote deep roots, protect from sunburn, shade soil and reduce weeds.

Thanks to Charlotte Glen and to the University of California for information used in this post.

Written By

Photo of Lucy Bradley, N.C. Cooperative ExtensionDr. Lucy BradleyExtension Urban Horticulture Specialist (919) 513-2001 lucy_bradley@ncsu.eduHorticultural Science - NC State University
Page Last Updated: 3 weeks ago
Was the information on this page helpful? Yes check No close