September Gardening Tips for San Antonio and the Hill Country Area


One of Ann Jones’ passions is gardening!  She loves the ability to garden year-round here in the San Antonio area.  She has searched for the best resources in San Antonio to help her have a healthy and beautiful garden and she wants to share some of those tips and resources with you monthly.  One of her favorite resources is The Hill Country Gardener, Tom Harris.  He is a local area expert and has compiled monthly checklists that will help keep your garden in tip top shape.  Below are his monthly gardening tips for September.

Happy Gardening from The Jones Real Estate Group part of the Phyllis Browning Company.


  • Add compost to your flowerbeds for a little extra kick that tired flowers need.
  • Flowering annuals can be transplanted now: alyssum, calendula, dianthus (pinks), flowering cabbage and kale, pansies, petunias, phlox, Shasta daisies, snapdragons, and stocks.


  • Continue to feed patio plants and hanging baskets with a water-soluble fertilizer such as 20-20-20 or Hasta-Gro.
  • Fertilize roses one last time for continual blooming.
  • Be careful about ordering bulbs from northern catalogues.  It’s a lot colder much sooner there than it is here.
  • Plant bluebonnet seeds about ½ inch deep now to allow them to germinate in the fall.  Water thoroughly.


Fruits and Nuts

  • Cut back your blackberry bushes.  You can maintain new canes at about 3-4 feet.



  • Caladiums need plenty of water this month.


Shade Trees and Shrubs

  • You can plant trees and shrubs this month but next month would be even better.
  • If you prune your oak trees, be sure to paint as soon as you cut.


  • If you have trouble getting enough sunshine to your turf, do some “selective” pruning to open the canopy of the tree.

Turf Grass

  • Cut way back on the lawn irrigation this month.
  • This is a good month to plant Bermuda to get it established before winter sets in.  Keep the seeds MOIST for about 10 days or so.



  • Protect young seedlings from hot sun.
  • Tender seedlings and transplants MUST be protected from the hot sun as well as spider mites, stinkbugs, grasshoppers and deer.  Old sheer-curtains do a great job.  Mulching  with oak leaves does a great job, too.


  • Vegetable crops benefit from a side dressing of fertilizer to enhance their growth and production potential.
  • It’s time to plant squash, bush beans, cucumbers, radishes, carrots, beets, sweet corn, and potatoes.


  • Check the drip irrigation system to be sure you’re putting the right amount of moisture on the veggies when they need it.
Posted on September 19, 2016 at 6:35 am
Ann Jones | Category: Uncategorized | Tagged , ,

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