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What to plant in June: Heat-tolerant crops for a thriving summer garden

As summer temperatures soar, many gardeners wonder: what can I plant in June that will thrive, not just survive, in the heat? The good news is that there are plenty of resilient crops perfectly suited for hot-weather planting. With a smart selection, your garden can stay productive and beautiful through the hottest months.

Why June is unique for gardeners

June marks the beginning of sustained high temperatures and, in many regions, increased humidity and less frequent rain. These conditions can challenge even experienced gardeners, but with the right crops and techniques, your garden can still flourish.

  • Soil is warm: Seeds germinate faster.

  • Long days: More sunlight for vigorous growth.

  • Pests and diseases: Some thrive in the heat, so smart choices and attentive care are key.

woman planting something ground

Best heat-tolerant vegetables and herbs to plant in June

1. Okra

Okra is a heat champion—its growth accelerates in hot weather. Sow seeds directly in warm soil. Harvest pods young for best flavor.

2. Sweet potatoes

Plant slips (young shoots) in well-drained soil. Sweet potatoes love the heat and will grow vigorously through summer, providing nutritious roots and edible leaves.

3. Southern peas (cowpeas, black-eyed peas)

These legumes thrive in the heat, fix nitrogen in the soil, and are drought-tolerant once established. Great for improving soil and providing protein-rich harvests.

4. Eggplant

Eggplant sets fruit best in warm, stable temperatures. Choose heat-resistant varieties and mulch well to keep roots cool.

5. Hot peppers

From jalapeños to habaneros, most hot peppers grow and fruit prolifically in summer heat. Full sun and well-drained soil are essential.

6. Malabar spinach

Unlike true spinach, Malabar spinach loves hot, humid weather and produces thick, tender leaves perfect for salads and cooking.

7. Basil

Basil thrives in hot, sunny conditions—just keep it watered. Pinch flower buds to encourage more leafy growth.

8. Armenian cucumbers

This unique cucumber relative is highly heat-tolerant and produces crisp, mild-flavored fruit even in extreme temperatures.

Flowers and ornamentals for June planting

Don’t neglect color!

  • Zinnias, marigolds, and portulaca are bright, tough annuals that laugh at the heat and keep gardens vibrant all summer.

Tips for successful gardening in high heat

Watering

  • Water deeply, not frequently. Early morning is best, to minimize evaporation and reduce disease risk.

  • Use mulch to retain soil moisture and protect roots from the sun.

Soil care

  • Add organic matter or compost before planting.

  • Avoid fertilizing in the heat of the day—feed early morning or late afternoon.

Shade and protection

  • Use shade cloth or plant taller crops to protect tender plants during the hottest part of the day.

  • Watch for signs of heat stress: wilting, leaf scorch, or dropped flowers.

Pest vigilance

  • Heat can bring aphids, spider mites, and whiteflies—inspect plants regularly and use natural controls like neem oil or insecticidal soap if needed.

Embrace the heat for summer success

June isn’t the end of your garden—it’s a new beginning for heat-loving crops.
Choose resilient varieties, water wisely, and give your plants a little extra care. Your summer harvest will be proof that a thriving garden is possible, even in the hottest months.

Frequently asked questions about June planting

Yes—focus on fast-growing, heat-loving crops. For slower crops, consider transplants.

Plant heat-tolerant varieties and provide afternoon shade where possible.

In some hot climates, it’s better to wait until late summer for a fall crop. Cherry tomatoes are more heat-tolerant than larger varieties.

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