The Dallas Garden School – Details, episodes & analysis

Mastering Liquid Fertilizer Application for Your Garden

In this episode of the Dallas Garden School podcast, host and North Texas gardening expert Callie Works-Leary answers a question from a student about the proper application of liquid fertilizer.

She explains the importance of following the instructions on fertilizer packaging, differentiates between granular and water-soluble fertilizers, and provides detailed steps on how to mix and apply fish emulsion liquid fertilizer.

Callie also discusses the potential risks of foliar feeding and the benefits of directing water and nutrients to the roots.

The episode wraps up with recommendations on when to use granular versus water-soluble fertilizers and tips for indoor seed starting.

00:00 Introduction to the Dallas Garden School Podcast

00:51 Understanding Fertilizer Instructions

02:05 Liquid Fertilizers: Usage and Tips

04:21 Watering Techniques for Optimal Plant Health

06:33 Granular vs. Water Soluble Fertilizers

08:05 Special Tips for Indoor Seed Starting

08:31 Conclusion and Additional Resources

Instagram: https://instagram.com/thedallasgardenschool

Website: https://thedallasgarden.com

Classes: https://learn.thedallasgarden.com

Amazon Store: https://www.amazon.com/shop/thedallasgardenschool_

In this episode of The Dallas Garden School Podcast, host and North Texas gardening expert Callie Works-Leary shares her personal list of the top 10 best-performing perennials for our unique climate.

These aren’t just any perennials—these are the tried-and-true varieties that bring color, resilience, and pollinator support to North Texas gardens year after year.

Whether you’re looking to upgrade your perennial beds or just getting started, this list is packed with expert insight and real-world experience.

🌿 Featured Perennials:

Salvia ‘Mystic Spires Blue’

Salvia nemorosa

Purple Coneflower (Echinacea purpurea)

Jerusalem Sage (Phlomis fruticosa)

Farfugium gigantea

Hollyhocks (Alcea rosea)

Oakleaf Hydrangea (Hydrangea quercifolia)

Turk’s Cap (Malvaviscus drummondii)

Rudbeckia hirta

Texas Rock Rose (Pavonia lasiopetala)

🎧 What You’ll Learn:

• Which perennials thrive in North Texas heat and humidity
• The visual appeal and bloom habits of each plant
• How to use these plants in your own landscape designs
• Tips for maintenance, pruning, and seasonal care

Looking for more North Texas gardening resources?

Visit www.thedallasgarden.com to find classes, downloads, and expert tools to help you grow with confidence.

📬 Want More Tips? Join the email list for exclusive North Texas gardening advice, planting reminders, and special offers.

Coco coir is everywhere these days—from seed-starting kits to trendy potting mixes. It's often hailed as a sustainable alternative to peat moss, but is it really as eco-friendly and effective as it sounds?

In this episode, North Texas gardening expert and educator Callie Works-Leary breaks down what coco coir actually is, why it’s become so popular, and the major drawbacks you need to know before using it in your garden. From hidden sustainability concerns to nutrient imbalances and overwatering risks, we’re digging into the dirty truth about this common soil ingredient.

Whether you're starting seeds, mixing your own potting soil, or building healthy raised beds, this episode will help you make an informed choice—and avoid some common pitfalls.

What You’ll Learn:

- What coco coir is and how it’s made

- The surprising environmental impact behind its production

- Why poorly processed coir can sabotage your plants

Links & Resources:

🌱 Learn more or sign up for classes at: www.thedallasgarden.com

Find products mentioned in this episode: https://www.amazon.com/shop/thedallasgardenschool_

Connect with Callie: Instagram: @thedallasgardenschool

Are mysterious holes appearing in your garden plants overnight? You're not alone—and chances are, caterpillars are the culprits. In this episode, we're diving into how to identify caterpillar damage, recognize the most common garden offenders, and take simple, effective action to protect your plants—without harming the rest of your garden ecosystem.

Whether you're growing kale, tomatoes, or flowers, this episode gives you the tools you need to fight back the right way.

What You’ll Learn:

• How to tell if caterpillars are behind the holes in your leaves
• The most common caterpillars in home gardens
• Safe and organic ways to manage caterpillar damage
• Why a few holes might not be a bad thing

Resources & Links Mentioned:

My favorite organic caterpillar control: https://amzn.to/4icNQyZ

Join an upcoming class or workshop: https://learn.thedallasgarden.com

Let’s Connect:

Follow me on Instagram @TheDallasGardenSchool

In this episode, Callie answers a thoughtful question from a student named Paula, who’s puzzled by a common indoor seed-starting dilemma: why did most of her tomato and pepper seedlings thrive—except for two specific heirloom tomato varieties?

Callie dives deep into:

• The difference between heirloom and hybrid seeds Why some varieties (or even specific strains) may underperform
• How small differences in light, water, or tray placement can affect seedling growth Why it's not your fault when a few seedlings don’t make it
• Tips for troubleshooting seedling issues and improving your results next time

Whether you're a new seed starter or a seasoned gardener, this episode is full of helpful insight into the art and science of growing strong, healthy seedlings indoors.

🌱 Resources Mentioned:

Baker Creek Heirloom Seeds
Johnny’s Selected Seeds
Learn more at The Dallas Garden School

💬 Have a question for Callie?
Leave a voice message at speakpipe.com/thedallasgardenschool and your question could be featured on a future episode!

📩 Stay in the Loop
Join the newsletter at thedallasgarden.com to get gardening tips, free resources, and updates on upcoming classes.

Essential Gardening Tools and Supplies for North Texas Gardeners

In this episode of the Dallas Garden School podcast, I'm sharing my must-have gardening supplies and walking through the critical tools and materials I keep in my garden bag.

Throughout the episode, I'll offer practical advice and personal recommendations to help you choose effective tools and products for your gardening needs.

00:00 Introduction to the Dallas Garden School Podcast

00:20 What's in My Garden Bag?

01:29 Essential Garden Tools and Supplies

08:02 Fertilizers and Plant Care

14:17 Seed Starting Mixes and Final Tips

17:25 Conclusion and Farewell

HERE ARE THE 3 KEY TAKEAWAYS FROM THIS EPISODE:

1️⃣ If you want to get professional results, you need to use professional supplies and techniques.

2️⃣ When selecting gardening tools, it's important to take into consideration our region. For example, our soils are naturally deficient in nitrogen, so the best fertilizers for us are high in nitrogen compared to phosphorus and potassium.

3️⃣ Sun protection supplies ARE gardening tools! We usually think about apply sunscreen when we're headed to the beach or pool, but applying sunscreen is an important pre-gardening ritual as well.

RESOURCES MENTIONED IN THIS EPISODE:

The Dallas Garden School Amazon Store: https://www.amazon.com/shop/thedallasgardenschool_

MORE FROM THE DALLAS GARDEN SCHOOL:

Classes: https://learn.thedallasgarden.com

Follow me on Instagram: https://instagram.com/thedallasgardenschool

Shop our store: https://shop.thedallasgarden.com

SUBSCRIBE & REVIEW

If you loved this episode, please take a moment to subscribe and leave a review! Your support helps us reach more North Texas gardeners who need these insights. 🎙 Thanks for tuning in to The Dallas Garden School Podcast! See you next week!

Unlock the secrets behind the most common — and confusing — gardening terms! In this episode of the podcast, I break down gardening lingo that can sometimes be confusing like “deadhead,” “transplant,” “pinch,” “bolt,” and more.

Whether you’re a beginner or a seasoned gardener, you’ll gain practical tips and clear explanations to help you grow your best garden ever.

Plus, get a sneak peek at upcoming classes and resources to take your gardening to the next level. Tune in and grow your gardening confidence!

RESOURCES:

Next class: Low-Maintenance Gardening with Perennials and Self-Seeding Annuals, September 13 

Download the free Fall Garden Plan 

Shop our Amazon Store - (all the gardening supplies I swear by!)

Check out our blog and build your garden know-how.

Take a class.

Follow me on Instagram @thedallasgardenschool  

SUBSCRIBE & REVIEW

If you loved this episode, please take a moment to subscribe and leave a review! Your support helps us reach more gardeners who need these insights. See you next week!

In this episode, I dive into the wonderful world of zinnias, a charming and super easy-to-grow flower. I cover everything from the various types of zinnias and their unique characteristics to how to plant, care for, and harvest them in North Texas. Plus, I share my favorite zinnia varieties that thrive in North Texas! 

00:00 Introduction to Zinnias

00:04 Why Zinnias Are Trending

00:45 Growing Zinnias: A Beginner's Guide

02:36 Varieties of Zinnias

03:09 Where to Buy Zinnia Seeds

03:59 Zinnias as Pollinator Plants

04:37 Choosing the Right Zinnia Variety

11:32 Planting and Growing Zinnias

16:51 Maintaining Healthy Zinnias

21:02 Dealing with Common Zinnia Problems

24:04 Encouraging Zinnias to Reseed

24:45 Upcoming Classes and Resources

25:30 Conclusion and Final Tips

RESOURCES MENTIONED:

Low-Maintenance Gardening with Perennials and Self-Seeding Annuals Class: https://learn.thedallasgarden.com/low-maintenance-gardening

2026 Planner Waiting List: https://shop.thedallasgarden.com/pages/2026-planner-notification

Upcoming classes: https://learn.thedallasgarden.com/

Instagram: https://instagram.com/thedallasgardenschool

SIGN UP FOR THE NEWSLETTER: https://grow.thedallasgarden.com/subscribe

Fall is For Perennials

In this episode, I talk about the common pitfalls beginner gardeners face when buying and planting perennials and how relying solely on nursery stock can be limiting. Fall, especially here in North Texas, is actually the best time to plant perennials because it allows for robust root growth, leading to better performance in the spring.

I'll guide you on how to source perennials beyond the typical nursery selection—like starting seeds indoors and checking out local organizations such as the Native Plant Society of Texas. I'll also cover how to divide your existing perennials to get new plants and discuss the benefits of self-seeding annuals.

Plus, don't miss out on my upcoming class on low-maintenance gardening, where I’ll delve deeper into the best plants for our area and share my top tips for growing them. Thanks for joining me!

00:00 Introduction to Beginner Gardening Challenges

01:36 The Importance of Planting Perennials in Fall

04:45 Challenges with Nursery Stock and Plant Selection

05:06 Starting Perennials from Seed and Finding Alternatives

06:20 Dividing and Propagating Existing Perennials

08:52 Utilizing Self-Seeding Annuals

09:55 Conclusion and Upcoming Class Information

RESOURCES MENTIONED:

Low-Maintenance Gardening with Perennials & Self-Seeding Annuals https://learn.thedallasgarden.com/low-maintenance-gardening

Instagram: https://instagram.com/thedallasgardenschool

Classes and more: https://learn.thedallasgarden.com

Blog: https://thedallasgarden.com

In this episode, we're diving into the intriguing mystery of what's eating our plants. Join me as we decode the clues left by various pests and learn how to identify the culprits behind the damage.

We'll explore different types of pest damage, from caterpillars to rabbits, and share effective prevention and treatment strategies specific to each pest.

Whether you're dealing with chewed leaves, sticky secretions, or missing seedlings, this episode will guide you to the right solutions. Plus, get science-backed tips for maintaining a healthy, balanced garden ecosystem.

00:00 Introduction and Purpose

01:00 Understanding Pest Clues

02:28 Types of Plant Damage

05:03 Identifying Specific Pests

09:55 Effective Pest Solutions

12:29 Preventative Measures

16:09 Conclusion and Final Thoughts

18:17 Seasonal Gardening Tips

RESOURCES:

Fall Planting Guide: https://grow.thedallasgarden.com/fall

Upcoming Classes: https://learn.thedallasgarden.com

Get on Waiting List for the 2026 Planner: https://shop.thedallasgarden.com/pages/2026-planner-notification

Read the blog: https://thedallasgarden.com

Follow on Instagram: https://instagram.com/thedallasgardenschool