July Garden Tips

gillnurseryMonthly Garden Guide

Lawn Care


Organic fertilizers such as Milorganite, Lady Bug Lawn & Garden, and Medina Growin Green are excellent fertilizers that feed plants and soil and are the best choice during hot, dry periods.

Lay new Sod

Lay new sod anytime, and Bermuda seed anytime this month.

Fix Yellow Spots

Apply Ironite or Hi Yield Iron Plus to yellow spots in lawn. Organically use Texas Green Sand.


Mow as required. Keep St. Augustine cut to about 3”, Bermuda at 1”– 2”.


Water well every 7 days.

Read: Summer is Here, Time to Resume Watering

Watch out for pests

Watch for Chinch Bugs and Grub Worms.


All container grown trees, shrubs, and vines.

It’s prime time to plant tropicals such as hibiscus, bougainvillea, ginger and palms.

  • Hibiscus

  • Bougainvillia

  • Ginger
Late spring and summer color

Zinnias, periwinkles, purslane, moss rose, gomphrena, lantana, ruellia, penta, caladiums, coleus, and more

  • Zinnias

  • Gomphrena

  • Lantana

  • Penta

Sunflowers, morning glory, zinnias, and gomphrena.

  • Sunflower
  • Screen Shot 38
    Morning Glory
Pepper and Tomato Seeds

Start seeds of peppers and tomatoes in containers to transplant in the garden in August.


  • Annuals and perennials

    with Miracle Gro or Osmocote Time Release Granules
    ORGANIC: Medina Growin Green, Lady Bug Lawn and Garden, Hasta Gro or Plant Tone

  • Hibiscus and tropical bloomers

    with Green Diamond Hibiscus Food
    ORGANIC: Maestro Gro-Rose Glo

  • Trees and shrubs

    with Green Diamond Supreme Lawn Food
    ORGANIC: Milorganite, Medina Growin Green, or Lady Bug Lawn and Garden

  • All granular fertilizer should be watered in well.


  • Dead wood from trees and shrubs
  • Faded blooms to encourage new blooms – especially important on perennials, tropicals, and crape myrtles
  • Shrubs to maintain good form
  • Palms, if needed

Watch Out For

  • Caterpillars

    Watch for caterpillars or their damage (chewed leaves).
    TREAT WITH: Liquid Sevin
    ORGANIC: Thuricide, Spinosad

  • Fungus, Powdery Mildew

    TREAT WITH: Broad Spectrum Fungicide, Fertilome Systemic
    ORGANIC: Neem Oil, or Serenade


    TREAT WITH: Spectracide Triazicide, Cyonara or Bayer Complete liquid or granules
    Organic: Diatomaceous Earth, Spinosad

    TREAT WITH: Liquid Sevin, Spectracide Triazicide, Cyonara, or Bonide Systemic
    ORGANIC: Neem Oil, or Insecticidal Soap

    Read: Mealy Bugs are Here

    TREAT WITH: Spectracide Triazicide, Bonide Systemic
    ORGANIC: Neem Oil, Insecticidal Soap,
    TREAT WITH: Cyonara, Spectracide Triazicide
    ORGANIC: Spinosad, Diatomaceous Earth
  • Borers

    Watch for Borers in mesquites, cottonwoods, ash, raintrees, chinaberry, and yucca.
    TREAT WITH: Spinosad

Water-wise Gardening

  • Mulch

    Mulch all landscape areas with at least 2 inches of shredded mulch.

  • Adjust Mowing

    Cut your grass higher so it will not dry out as quickly.

  • Trimming & Cleanup

    Trim overgrown plants with excessive foliage so they use less water.
    Remove old or unsightly plants you plan to get rid of anyway.
    Repot root bound patio plants and add Soil Moist Crystals.

  • Adjust Irrigation System

    Use your irrigation system or sprinklers once a week. You can water anytime before 10:00am or after 6:00pm. Use the Cycle Soak Method found on our website. Be sure not to let water run off onto the streets and sidewalks.

  • Fertilize

    Top dress lawns with Nature Blend.
    Use organic fertilizers to keep plants healthy.

  • Water

    Install drip irrigation around your foundation and plants for slow soaking and less water waste.

    You can water anytime with a hand held hose, soaker hose or drip irrigation hose provided it is equipped with a positive shut off nozzle.

  • Read: If you Have a Lawn Irrigation System…
  • Read: Heat Wilt