Thriving in the Heat: Expert Summer Gardening Tips for Georgia Gardeners

As the summer season approaches, Georgia gardeners are gearing up to tackle the sweltering heat that comes with it. With temperatures often soaring into the triple digits, it can be a challenge to keep gardens thriving. However, with the right preparation, plant selection, and expert advice, backyard gardens can continue to flourish despite the heat.

According to Tiffanny Jones, director of horticulture for the Goizueta Gardens at the Atlanta History Center, choosing heat-resistant plants is key to maintaining healthy gardens through the peak summer season. Vegetable gardeners are increasingly turning to crops like peppers, greens, cucumbers, and certain varieties of tomatoes, which are not only heat-tolerant but also packed with nutrients and flavor.

Herbs like basil and rosemary are also heat-tolerant and add fragrance to outdoor and indoor spaces. Patricia Ballou Matthews, an Atlanta resident who has been harvesting vegetables in her backyard for 15 years, swears by the benefits of growing her own produce. "I just wanted to get back in touch with nature and grow my own vegetables because they taste so much better. Plus, I know what’s in the soil," she says.

For those interested in planting flowers and greenery, Jones suggests popular heat-tolerant plants like salvia, lantana, and achillea, also known as yarrow. Seasonal color plants like begonia, penta, and echinacea (coneflower) also work well and can add a burst of color to outdoor spaces. But successful gardening begins long before the hottest days arrive. Soil preparation and irrigation now can determine whether plants thrive or struggle.

Healthy soil is essential, especially in Georgia, where red clay can make gardening more challenging. However, since clay is nutrient-rich, Jones recommends mixing it with ground soil found at retail nurseries. Fertilizer also plays an important role in healthy plant growth, and ideally, organic matter like mushroom compost, shredded leaves, or manure should be added to improve in-ground planting.

For irrigation, a standard garden hose works well, but Matthews says there’s nothing like rainwater. "When it rains, I can literally go out the next day and see something that wasn’t there yesterday!" she exclaims. However, experts warn that overwatering is one of the most frequent gardening mistakes. A better pattern is watering deeply two to three times a week, and using pots with built-in drainage can help prevent waterlogged soil.

Maintenance practices like pruning also play a key role in healthy growth. "Just like with flowers, the more you prune your vegetation, the more they produce," Matthews adds. If vegetables are mature, it’s best to pick them to encourage further growth. With a little creativity and planning, even small spaces like patios, balconies, and porches can become productive green spaces.

Container gardens offer flexibility and are especially useful for flowers, herbs, and compact vegetables. Hanging baskets and vertical planters maximize space while adding visual interest, and colorful pots and climbing vines can transform even limited spaces into relaxing retreats during the summer.