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Updated: May 19

Gardener's Almanac Monthly Gardening Checklist

Beginning in early August, plant selected cool-season vegetables for a fall harvest.
Deadhead (cut off) spent blossoms of perennial and annual flowers.
Deep water established trees and shrubs about once per month during the heat of summer.
Turfgrass only needs 1 ½-2 inches of irrigation per week. See irrigation needs in your area.

Pests and Problems:

If tomatoes are not producing, one common reason could be due to hot weather (95°F and above) which causes flower abortion.
Blossom end rot (black sunken areas on the end of tomatoes) is common and is caused by uneven watering.
Check under the leaves of pumpkins, melons, and squash plants for squash bugs.
Treat for Corn earworm when the corn’s silk is approximately ½ long.
Spider mites prefer dry, hot weather and affect many plants. Treat Spider mites using “softer” solutions such as spraying them with a hard stream of water or insecticidal soap.
Spider mites can be identified by shaking leaves over a white piece of paper. If the small specs move…mites.
Control Codling moth in apples and pears to reduce wormy fruit. For specific timing see our Utah Pests Advisories.
Historically, control of the Greater Peach Tree borer in peaches, nectarines, and apricots occurs on the first of July. However, for specific timing see our Utah Pests Advisories.
Submit a sample to the Utah Plant Pest Diagnostic Lab (UPPDL).
Watch for symptoms of turfgrass diseases.
Monitor for damaging turfgrass insects.