July: Gardening To-Do List


  • Fertilize warm season grasses using one of Marcum Nursery’s exclusive fertilizers made in Oklahoma: Kelly Ray’s Fast Growing Fertilizer 46-0-0, BR’s Lawn Tonic 28-6-12Original Slow Release Fertilizer 18-6-12 or Big Mont’s Nitro Green 31-0-0.
  • Mowing heights for cool-season grasses should be 3″ during hot, dry summer months. Gradually raise the mower height of bermuda grass lawns from 1 and 1\2 to 2 inches.
  • Treat “Dollar Spot” disease on lawns with  ferti-lome Liquid Systemic Fungicide or ferti-lome F-Stop. Be sure to fertilize prior to applying a fungicide.
  • Meet water requirements of turf.
  • The hotter and dryer it gets, the larger the spider mite populations become. Spray plant foliage with Hi-Yield 55% Malathion, Natural Guard by ferti-lome Insecticidal Soap Concentrate or Natural Guard by ferti-lome Spinosad.
  • Look carefully for bagworms. These are tiny brown bags barely visible to the eye. If found, easier to treat at now than later. Apply Hi-Yield 55% Malathion, Natural Guard by ferti-lome Spinosad, or Natural Guard by ferti-lome Caterpillar Spray with BT.
  • For preventative white grub treatments, apply Hi-Yield Grub Free Zone II in late June to mid-July.
  • Expect some leaf fall, a normal reaction to drought.
  • Revitalize your trees and shrubs with ferti-lome’s Fish Emulsion.
  • Don’t forget to mulch! Marcum’s has many choices of premium mulches to choose from.
  • See Marcum’s Watering Guidelines for planting trees and shrubs.

Note: Thanks to Oklahoma Coop Extension Service for providing some of the suggested maintenance guidelines.

For questions regarding July maintenance guidelines, please call Goldsby 405 288-2368, Oklahoma City 405 691-9100,  Norman 405 447-3100 or Ardmore 580 223-1846.