What to Plant in August in Texas: Heat-Tolerant Veggies and Flowers for a Thriving Garden

What to Plant in August in Texas: Heat-Tolerant Veggies and Flowers for a Thriving Garden

August in Texas might seem too hot for gardening, but it’s actually a prime time to get your hands dirty. With the right choices, you can set your garden up for a bountiful fall harvest. Whether you’re a seasoned gardener or just starting out, knowing what to plant this month can make all the difference.

From heat-tolerant vegetables to vibrant flowers, August offers a unique planting window. You’ll find that some plants thrive in the lingering summer heat, while others prepare for cooler days ahead. Ready to transform your Texas garden? Let’s dive into the best options for this scorching month.

Key Takeaways

  • August Planting Benefits: Despite the heat, August is a prime time for gardening in Texas, offering a unique window for planting heat-tolerant vegetables and vibrant flowers for a bountiful fall harvest.
  • Texas Climate Considerations: High temperatures often exceeding 90°F (32°C) and sporadic rainfall require strategic watering schedules; early morning or late evening watering works best to mitigate heat stress.
  • Vegetable Choices: Tomatoes, peppers, and okra are ideal for Texas’s August climate. Choose heat-tolerant varieties and use mulch to retain soil moisture and keep roots cool.
  • Flower Selections: Marigolds, sunflowers, and zinnias thrive in August heat, adding beauty and attracting pollinators like bees and butterflies. These flowers require well-drained soil and regular watering.
  • Planting Tips: Use effective irrigation strategies like deep, infrequent watering and drip irrigation to conserve water. Balance shade and sunlight to protect sensitive plants and ensure optimal growth conditions.

Understanding Texas’s August Climate

Temperature and Rainfall Patterns

August in Texas sees high temperatures and sporadic rainfall. Daytime temperatures often exceed 90°F (32°C) and can reach over 100°F (38°C). Nights remain warm, with temperatures above 70°F (21°C). Rainfall varies; some areas experience minimal rain while others receive occasional thunderstorms. To mitigate heat stress, scheduling watering early in the morning or late in the evening works best for plants.

Soil Considerations

Texas soils range from sandy and loamy to clay. August’s heat can dry out the soil quickly. Using mulch helps retain moisture and regulate soil temperature. Compost adds essential nutrients and improves soil structure, ensuring better growth conditions. Ensuring the soil drains adequately prevents waterlogging, which can damage plant roots.

Best Vegetables to Plant in August

Best Vegetables to Plant in August


Tomatoes thrive in Texas’s August heat when properly mulched to retain soil moisture. Choose heat-tolerant varieties like Celebrity and Sunmaster. These types can handle temperatures exceeding 90°F. Sow seeds directly in the garden, ensuring they receive at least six hours of sunlight daily. Keep the soil consistently moist but well-drained by using compost-enhanced soil.


Peppers, including bell and hot peppers, grow well under Texas’s warm conditions. Plant varieties like Jalapeño, Bell Boy, and Banana Peppers. These peppers need temperatures between 70°F and 90°F. Space plants about 18 to 24 inches apart to ensure adequate airflow, reducing the risk of fungal issues. Use mulch around plants to retain moisture and keep roots cool.


Okra flourishes in the high temperatures of August. Varieties like Clemson Spineless and Emerald are ideal for Texas gardens. Plant seeds directly into the soil at a depth of 1 inch and space them 12 to 18 inches apart. Okra requires full sun and regular watering. Use organic mulch to conserve moisture and suppress weeds around the base of the plants.

Ideal Flowers for Late Summer


Marigolds thrive in Texas’s August heat. These flowers can withstand high temperatures and intense sunlight. Choose varieties such as ‘Crackerjack’ or ‘French Dwarf.’ Plant marigolds in well-drained soil around 6 to 12 inches apart to ensure proper air circulation. Water them regularly in the early morning for optimal growth.


Sunflowers are ideal for Texas’s summer climate. Their tall stalks and vibrant blooms add a stunning visual appeal to gardens. Opt for varieties like ‘Mammoth’ or ‘Autumn Beauty.’ Plant sunflower seeds directly in the ground, spacing them about 12 to 18 inches apart. Ensure the soil is well-drained and water sparingly to avoid waterlogging.


Zinnias flourish in the summer heat, making them perfect for August planting. Their bright, colorful flowers attract pollinators such as bees and butterflies. Select varieties like ‘California Giants’ or ‘Lilliput.’ Plant zinnias in nutrient-rich, well-drained soil and space them 6 to 18 inches apart, depending on the variety. Water consistently to keep the soil moist but not overly saturated.

Tips for Planting in the Heat

Tips for Planting in the Heat

Irrigation Strategies

Effective irrigation is crucial when planting in Texas’s August heat. Water plants deeply and infrequently to encourage deep root growth. Aim for early morning to minimize evaporation and diseases. Use drip irrigation or soaker hoses to deliver water directly to the roots, reducing waste. Monitor soil moisture regularly, especially after rainfall, to adjust watering schedules accordingly. Apply mulch to retain moisture and keep soil temperatures stable. Consider xeriscaping with drought-tolerant plants to conserve water.

Shade and Sunlight Balancing

Balancing shade and sunlight ensures optimal growth for your August plantings. Use shade cloth or create temporary structures to protect sensitive plants during peak sunlight hours. Plant taller species strategically to provide natural shade for smaller, delicate plants. Ensure that heat-loving plants, like tomatoes and peppers, receive at least 6-8 hours of direct sunlight daily. Pay attention to the sun’s path and adjust plant placements to maximize or minimize exposure as needed. By carefully managing light conditions, you support healthy, vigorous growth in your garden.


Gardening in August in Texas can be incredibly rewarding if you choose the right plants and follow essential tips for managing the heat. By focusing on heat-tolerant vegetables and vibrant flowers, you can ensure a bountiful fall harvest. Remember to consider soil health, effective irrigation strategies, and balancing shade and sunlight to optimize growth. With the right approach, your garden will thrive even in the challenging Texas summer heat. Happy planting!

In August, Texas gardeners can focus on planting heat-tolerant vegetables and flowers that can thrive in the state’s hot summer conditions. Crops like okra, sweet potatoes, and heat-resistant flower varieties are ideal choices, as recommended by the Texas A&M AgriLife Extension. Additionally, implementing proper watering techniques and soil management can help ensure a successful and vibrant garden, according to Better Homes & Gardens.

Frequently Asked Questions

Why is August a good time for gardening in Texas?

August provides a unique planting window for heat-tolerant vegetables and vibrant flowers, allowing them to thrive in the summer heat and prepare for a successful fall harvest.

Which vegetables are ideal for planting in August in Texas?

Vegetables like tomatoes, peppers, and okra are suitable for planting in August. Choose heat-tolerant varieties and follow specific planting techniques for successful growth.

What are the key climate considerations for gardening in Texas in August?

Understanding Texas’s August climate is crucial, including high temperatures exceeding 90°F, sporadic rainfall, and warm nights. These conditions significantly influence planting and care strategies.

How can I improve soil conditions for my August garden in Texas?

Use mulch to retain moisture, add compost for nutrients, and ensure proper drainage to prevent waterlogging and root damage. These soil considerations are essential for healthy plant growth.

What flowers should I plant in late summer in Texas?

Marigolds, sunflowers, and zinnias are ideal flowers for late summer in Texas. They thrive in the heat and add vibrant colors to your garden.

How should I water my garden during the August heat in Texas?

Effective irrigation strategies include deep watering, watering early in the morning, and using drip irrigation to ensure plants receive adequate moisture without overwatering.

How do I balance shade and sunlight for my garden in August?

Use shade cloth, strategically place plants to manage light conditions, and adjust the garden layout to ensure optimal growth while protecting plants from excessive sun exposure.

Why is proper drainage important for gardening in August in Texas?

Proper drainage prevents waterlogging and root damage, which are crucial for maintaining healthy growth in the high temperatures and sporadic rainfall of Texas in August.