What to Do in Your Central Texas Garden (July 15–31): Prune Now & Plan for Fall

Late July is one of the hottest times of the year in Central Texas, but there’s still plenty to do in the garden. In this episode, Colleen shares practical tips for dealing with chiggers, why she recommends avoiding French drains, how to prune trees, shrubs, fruit trees, and perennials during summer dormancy, and what vegetables you can still plant before fall arrives. She also explains how to calculate planting dates based on your area's average first freeze and encourages gardeners to save and share seeds with their local community.

🦟 Chigger Prevention & Relief

Chiggers seem to be especially active this year, and Colleen shares her favorite ways to prevent bites and relieve itching.

Prevent Chigger Bites

  • Apply a DEET-based insect repellent to shoes, socks, and pant legs.

  • Dust clothing or landscapes with sulfur powder (keeping pets away until it's watered in).

  • Avoid direct contact with areas known to have chiggers.

If You Get Chigger Bites

  • Take Benadryl at night to help reduce itching.

  • Apply witch hazel with a drop or two of peppermint essential oil.

  • Use peppermint soap to soothe irritated skin.

💧 Why Colleen Doesn't Recommend French Drains

If you've been dealing with erosion after heavy rains, you may be considering a French drain—but Colleen explains why they're rarely her first choice.

Common Problems with French Drains

  • Can damage tree roots during installation

  • Pipes may shift or break in clay soil

  • Tree roots clog perforated pipes

  • Standing water can attract mosquitoes

  • Repairs are difficult because the system is underground

💡 Stay tuned for the next episode, where Colleen discusses earthworks as a more sustainable alternative.

🌳 Tree & Shrub Care in Late July

Summer is still not the time to plant trees or shrubs, but it is an excellent time for pruning.

Summer Tree Pruning

  • Clear roofs, sidewalks, and driveways

  • Lift tree canopies for better visibility

  • Improve airflow between plants

  • Never remove more than 25–30% of a tree's leaves in one year

Shrubs That Benefit from Summer Pruning

  • Texas Mountain Laurel

  • Hydrangeas

  • Azaleas

  • Winter Honeysuckle

  • Elbow Bush

  • Redbuds

🌹 Rose Care

  • Summer prune to control size

  • Deadhead spent blooms

  • Remove rose hips to encourage fall flowers

🍎 Fruit Tree Care

Late July is one of the best times to summer prune established fruit trees.

Benefits of Summer Pruning

  • Keeps trees smaller and easier to harvest

  • Improves airflow and sunlight

  • Encourages more flower buds for next season

  • Reduces excessive vigorous growth

Don't Forget

  • Sanitize pruning tools between trees.

  • Remove dead, diseased, crossing branches and water sprouts.

  • Research whether your apple or pear varieties are tip-bearing or spur-bearing before pruning.

🌿 Summer Perennial Maintenance

Most perennials have reached their maximum size and benefit from a midsummer trim.

Cut Back by Half

  • Mealy Blue Sage

  • Henry Duelberg Sage

  • Mexican Bush Sage

  • Indigo Spires

  • Mystic Spires

  • Black & Blue Sage

  • Fall Asters

  • Goldenrod

  • Maximilian Sunflowers

This helps produce bushier plants and more blooms in the fall.

Deadhead Summer Bloomers

  • Yellow Bells

  • Plumbago

  • Pride of Barbados

  • Hibiscus

Refresh Overgrown Plants

If plants like Turk's Cap, Canna Lilies, or Lamb's Ears are looking tired or damaged, don't be afraid to cut them back now to encourage fresh fall growth.

🌱 Pruning Small Evergreen Shrubs

Late July is one of the best times to prune semi-evergreen subshrubs.

Examples

  • Salvia greggii

  • Damianita

  • Rock Rose

  • Mexican Oregano

  • Globe Mallow

Pruning Steps

  • Remove dead or broken branches.

  • Remove stems touching the ground.

  • Remove overly woody stems.

  • Lightly shear the top 2 inches.

This keeps plants healthier, fuller, and longer-lived.

🥕 Summer Vegetable Gardening

Many gardeners choose to give their vegetable gardens a break during the hottest part of summer.

If You're Taking a Break

  • Remove unhealthy or unwanted plants.

  • Store cages and trellises.

  • Add compost and fertilizer.

  • Cover beds with a thick layer of mulch.

Or Plant a Summer Cover Crop

  • Black-eyed Peas

  • Sunflowers

  • Millet

  • Buckwheat

  • Sorghum

🌞 Still Growing Food This Summer?

If you're continuing to garden through the heat, you can still plant:

Direct Sow

  • Okra

  • Southern Peas

  • Melons

  • Armenian Cucumbers

  • Cucamelons

  • New Zealand Spinach

  • Malabar Spinach

  • Molokhia

  • Magenta Spreen

Last Chance to Plant

  • Pumpkins

  • Gourds

  • Winter Squash

Important Tip

Count backward from your area's average first freeze date to make sure long-season crops have enough time to mature before frost.

🌿 Herb Garden Cleanup

Many herbs are ready for midsummer maintenance.

Cut Back

  • Basil

  • Mint

  • Lemon Balm

  • Chives

Prune Evergreen Herbs

  • Oregano

  • Lavender

  • Thyme

  • Sage

  • Rosemary

  • Marjoram

Keep Growing

Continue watering and feeding:

  • Lemongrass

  • Ginger

  • Turmeric

  • Roselle Hibiscus

🌼 Wildflower Meadow Maintenance

Late July is the perfect time to prepare your wildflower meadow for next season.

Don't Forget To:

  • Harvest seeds before mowing.

  • Mow to spread seed naturally.

  • Prevent woody plants from taking over.

  • Consider a prescribed burn if appropriate and properly trained.

🌱 Host a Community Seed Swap

This episode's activism segment encourages gardeners to share seeds and build stronger gardening communities.

Seed Swap Tips

  • Keep events free and informal.

  • Sort seeds by category.

  • Label seeds with the plant name and harvest year.

  • Donate leftover seeds to your local seed library.

Supporting community seed sharing helps preserve locally adapted plants and makes gardening more accessible for everyone.

🔗 Resources & Products Mentioned

Dusting Sulfur for Chigger Repellent on clothing: https://amzn.to/4xJJecD

Dustin Sulfur for Chiggers in the landscape: https://amzn.to/4f3j2RR

https://amzn.to/43SpA0o

Peppermint Essential Oil: https://www.amazon.com/dp/B07K3RTJ7B?tag=atxgardens-20&linkCode=osi&th=1&psc=1

Stuff You Should Know Podcast Chiggers Episode:https://youtu.be/XUgbbqcoi1c?si=jN8sgRUavoE5P28S

Plant Labels: https://amzn.to/4mDMmBw

Orchard loppers: https://www.amazon.com/dp/B0092KF3C4?tag=atxgardens-20&linkCode=osi&th=1&psc=1

https://amzn.to/4aSeeNF

Seed swap instructions (scroll down): https://www.centexseedsavers.org/startaseedlibrary

Let's Care for Texas Plants - Digital Download — ATX Gardens

Make an appointment at ATXGardens.com

🌼 Stay Connected

For more Central Texas gardening advice, seasonal planting tips, and sustainable landscaping guidance, visit http://ATXGardens.com and follow Colleen on Instagram @‌ATXGardens_.

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What to Do in Your Central Texas Garden (July 1–15): Rain Gardens, Fig Harvest & Summer Pruning