Monthly Tip for September

Water more frequently

Trees Every 1-2 weels 3ft deep around the drip line
Shrubs 2ft Deep
Groundcover 1ft Deep
Lawn/Turf Every 3-5 Days in the morning 6″ deep

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Calendar for Organic Gardening – September


  • Deeply and infrequently.


  • Summer flowering perennials need spent blooms removed.
  • Surface tree roots need to be removed but no more than 20% of the root system per year
  • Wisterias that failed to bloom need the roots pruned..


  • Use organic fertilizer on all planting areas (10-20lbs./1,000 sq ft.); especially peppers and tomatoes.
  • All planting areas and lawns need to be foliar fed with Extreme Juice.

Pest Control

  • Treat grub worms with beneficial nematodes.
  • Spray bacillus thuringiensis for cabage loopers on cauliflower, broccoli, cabbage and brussel sprouts.
  • Garlic tea or water blast takes care of aphids on tender, new fall growth. Adding 2 oz. molasses to gallon of spray is better.
  • Release ladybugs.
  • Dust fire ant mounds with diatomaceous earth then release beneficial nematodes.
  • Black spot and powdery mildew on roses can be treated with Extreme Juice plus 1 cup skim milk per gallon of spray.
  • Kill white flies with insecticidal soap.
  • If plants are suffering from iron chlorosis use chelated iron and sulfer, or Texas Greensand.


  • Remember plant your wildflower seeds if you haven’t already- you have from late September to early November.
  • By early September finish warm season lawn grass planting.
  • Time to transplant established spring flowering bulbs – iris and daylilies.
  • Perennials.
  • Cool season grasses and leafy root crops – carrots, turnips and beets.

Odds ‘n Ends

  • Leave grass clippings on lawn when you do your weekly mowing.
  • Turn the compost pile.
  • Remove bad fruit on citrus.
  • Start refrigerating tulips and hyacinth bulbs.

Dave Owens the Garden Guy
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