October Garden Guide

gillnurseryMonthly Garden Guide2 Comments

Fall is Our Best Planting Season!

Trees, shrubs, and perennials get a great bonus when planted in fall. South Texas enjoys relatively warm soil temperatures through fall and winter, and cooler air  temperatures direct the new plant to grow roots all through this time. So, a plant put into the ground in fall will grow twice as fast the following spring as one planted in spring due to having developed twice the root system, and it will also suffer much less stress in its first South Texas summer. We are lucky that we can garden year round here, but fall is our best season for planting!

What to


Vegetable Seeds

Beet, carrot, cilantro, collards, lettuce, mustard, onion, parsley, radish, Swiss chard, spinach, and turnip.

Read: Best Timing for Popular Fall VeggiesKeith’s Swiss Chard Success Story

Flower Seeds

Bluebonnets and other wildflowers, larkspur, sweet peas, nasturtiums.

Read: Fall is Wildflower Planting Time!

Vegetable Transplants

Broccoli, Brussels sprouts, cabbage, cauliflower, strawberries, parsley, cilantro, and other herbs.

Read: How to Keep Your Vegetable Garden Healthy This Fall

Read: Get Your Greens! Sally’s Kale Smoothie Recipe

Flower Transplants

Alyssum, begonias, bluebonnet, calendula, chrysanthemum, dianthus (pinks) dusty miller, flowering cabbage and kale, geraniums, gerbera daisy, impatiens, lobelia, marigolds, pansies, petunias, phlox, salvia, snapdragons, stock, verbenas, and viola.

Read: Success with Fall Flowers, Marigolds & Mums!

Flower Bulbs

Begin refrigerating bulbs that require chilling such as paperwhites. Amaryllis can be planted now.

Read: Amaryllis & Paperwhites

All container grown trees and shrubs.

Read: Burr Oak – an Awesome South Texas Tree

Read: Best Tips of Planting Trees This Fall

What to


Winterize Your Lawn

Winterize your lawn with Gill 13-1-3, or Supreme lawn food.

For an organic approach, use Milorganite or Medina Growin’ Green


We recommend: Hibiscus Food

Organic: Maestro Rose Glo


We recommend: Bayer Rose & Flower Rose Food
Organic: Maestro Rose Glo


We recommend: Miracle Gro
Organic: with Maestro Rose Glo

Blooming Annuals and Perennials

We recommend: Hibiscus Food, or Osmocote 14-14-14 Time Release
Organic: Medina Growin Green, Hasta Gro or Maestro Rose Glo

Read: Success with Fall Flowers


We recommend: Hi Yield Ammonium Sulphate, or Osmocote 14-4-14 Time Release Granules
Organic: Hasta Gro, Maestro Rose Glo, or Plant Tone

Christmas Cactus

We recommend: Miracle Gro or
Organic: Hasta Gro

Read: How to Get Your Christmas Cactus to Bloom!

All plants that are especially stressed, or recently transplanted

We recommend (organic): Hasta Gro or Super Thrive

Read: It’s Time to Fertilize for Fall!

What to


  • Water your newly planted vegetables and bedding plants regularly, but take care not to overwater with cooler nighttime temperatures.
  • Cut back on watering your established plants and lawn as temperatures cool down, since they use less water. If you are unsure when to water, use a moisture meter to take out the guesswork.

What to


Out For

  • Masses of worms eating your oak tree.

    Treat with Cyonara
    Organic: Spinosad or Thuricide.

    Read: Oak Tree Caterpillars

  • Grub Worms in Lawns

    Treat with Bayer 24 hour Grub Control Granules, Bayer Complete or Spectracide Triazicide

  • White Flies on tropicals and perennials, especially lantana and hibiscus.

    Treat with Bayer Rose & Flower Spray, or Bayer Tree & Shrub Concentrate
    Organic: Insecticidal Soap or Neem Oil.

    Watch: Yucky Whitefly

  • Chinch Bugs in Lawns

    Treat with Cyonara or Spectracide Triazicide
    Organic: Diatromaceous Earth, Spinosad

    Watch: How to Check for Chinch Bugs in Your Lawn

  • Mealy Bugs

    Treat with Cyonara, or Spectracide Triazicide, or Bonide Systemic Liquid or Granule
    Organic: Neem Oil or Insecticidal Soap

    Read: Mealy Bugs are Here!

  • Caterpillars or their damage (chewed leaves).

    Spray with Cyonara
    Organic: Spinosad or Thuricide.

    Read: Not All Caterpillars are Bad!

  • Fleas and Ticks

    Treat lawns with Cyonara or Triazicide
    Organic: Spinosad, or Diatomaceous Earth Crawling Insect Killer.

  • Mosquitoes

    Use Mosquito Beater Liquid for quick kill or Mosquito Beater Granules to repel.

    Read: Mosquito Solutions

  • Powdery Mildew on Crape Myrtles & Roses

    Use Fertilome Broad Spectrum Fungicide or Fertilome Systemic Fungicide 
    Organic: Serenade, Neem Oil

Note: Please, Please, Please, don’t kill the bees!

They are one of the best sources we have to pollinate our fruits, vegetables, flowers, and shrubs.

Read: Best for Bees!


Lawn Care

What to


  • Your hardy, woody ornamentals and tropicals only to shape, not severely.
  • Summer perennials.

2 Comments on “October Garden Guide”

  1. I have a navel orange tree that needs help. its planted on the island. Been there since 2006. Had huge crop of oranges every year. HOWEVER, after Harvey the crop has been minimal and the fruit is poor texture/taste. Thats 2 years ago. My neighbors are missing their free oranges as well . Do you have/recommend a good citrus fertilizer and or anything else to help .

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