Planting
Container trees can be successfully planted in the month of September even though the weather hasn’t cooled down yet. It is very important to keep the trees watered until adequate rainfall occurs.
Transplanting
Fall and winter months are the best time to transplant.
Fertilizing
This is the last month of the year you would want to fertilize.
Pest Control
It is unlikely this late in the year that pest-control will be necessary, but keep an eye out for any abnormal changes in your trees.
Pruning
Spring flowering trees have set their flower buds for next year and should not be pruned. Continue to prune any damaged or dead limbs.
Water
Temperatures may become milder during this month but it can still be dry. Make sure that you keep enough water on recently planted trees and use sprinklers on larger, established trees.
Planting
Container roses can still be planted but require deep watering whenever we go 5 – 7 days without a good rain of 1 to 1 ½ inches.
Transplanting
It is still too hot to transplant roses this month.
Fertilizing
This is the last fertilization required for this season.
Pest Control
Blackspot, powdery mildew, spider mites, aphids are still active through the fall.
Pruning
Roses should not be cut back this time of year.
Watering
Supplemental watering is still necessary if rainfall amounts are less than 1 to 1 ½ inch every week.
Planting
This is the last month to plant warm-season lawn seeds.
Fertilizing
Wait till the end of October to winterize your Texas lawn.
Pest Control
Watch for army worms – they chew grass blades and can make the lawn look terrible.
Mowing
Don’t let your grass get overgrown before mowing.
Watering
Water as needed.
Planting
Temperatures are still hot but just like June, July and August container grown shrubs can successfully be planted during this time of the year.
Transplanting
September is not a good time to transplant.
Fertilizing
For plants with off color this is usually a god moth to fertilize one last time during the active growing season. Use a slow- release fertilizer not a quick-release one.
Pest Control
The same pests that have been around all summer may continue this month.
Pruning
Do not prune any winter or spring flowering shrubs at this time.
Watering
Keep up the good work in applying water to your plants. This should be the last month of hot temperatures for the year.
Planting
Perennials started from seeds earlier this year are probably large enough to go into the garden now. You can also plant container grown perennials during this month.
Transplanting
Day-lilies and Irises may be divided now.
Fertilizing
Perennials that have finished blooming for the year should not be fertilized now. Any perennials showing nutrient deficiencies may be fertilized, but use a water soluble fertilizer to deliver nutrients immediately.
Pest Control
Pests have had all summer to build up population levels. Be on the lookout and treat with the proper aids.
Pruning
Continue deadheading and remove any spent stalks, etc.
Watering
Water as needed using sprinkler, soaker hoses or drip irrigation.
Planting
It is too early to plant cool-season annuals.
Fertilizing
Container plantings need to be fed with a soluble fertilizer but annuals in flower beds don’t require any fertilizer this late in the season.
Pest Control
Whiteflies can be found on Lantana and Hibiscus but can be controlled.
Watering
Make sure that your annual beds receive enough water through either rainfall or supplemental irrigation.
