Many plants thrive full sun heat conditions with no problems at all. Blanket flower, salvia, agastache, Russian sage, and lavender all love the hottest spots in your yard. You can turn that baking south-facing bed into a colorful showpiece.
I tested heat tolerant perennials in the worst spot on my property last summer. My driveway bed hits 100+ degrees on summer afternoons when the sun beats down. The concrete bounces heat up and bakes the soil bone dry. My blanket flower and agastache bloom their brightest right there.
These tough plants come from places with brutal summers around the world. Many trace their roots to the Mediterranean or American Southwest. Their bodies evolved to handle intense sun and long dry spells over centuries. You can see these survival traits in their leaves, stems, and roots.
Silvery or gray foliage works like a mirror that bounces sunlight away from the leaf surface. Russian sage and lavender wear this protective coating on every leaf. The reflection keeps your plants cooler so they lose less water through the day. Fuzzy hairs add shade right at the leaf.
Small leaves also help your full sun flowers handle the heat each day. Compare a tiny agastache leaf to a big hosta leaf and you see the big difference. Less surface area means less water loss through the hot afternoon hours. Many close their pores at midday.
Blanket flower grows in zones 3-10 and laughs at summer heat that stresses most flowers in your garden. Salvia handles zones 4-10 with spiky blooms that bring hummingbirds to your yard. Agastache thrives in zones 5-10 and smells like mint when you brush past its leaves.
I learned to pair my heat lovers with ornamental grasses that share the same tough attitude toward heat. The grasses fill space between your flowers and their movement adds life to the whole bed. Muhly grass and blue oat grass handle hot spots well and look great next to bright colors.
Water your hot climate plants in the morning before the sun gets high in the sky above. This lets leaves dry before nightfall so you avoid fungal problems that plague wet foliage. Deep watering once or twice a week beats light sprinkles. Your roots grow down to find water.
Pick spots in your yard with at least 6 hours of direct sun for the best blooms all season. More sun means more flowers on most heat-loving plants in your landscape. Add gravel mulch around each plant to keep root crowns dry. Your hottest spots become garden stars.
Start with three or four types and expand as you see which ones perform best for your conditions. The plants thrive full sun heat and give you color all summer with minimal effort from you. You spend less time watering and more time enjoying the view.
Read the full article: 15 Water-Wise Drought-Resistant Perennials
