13 Heat-Proof Annuals

All of these heat-proof annuals are recognized as Dallas Arboretum Plant Trials’ Flameproof Plants or Florida Favorites by Floridian and Proven Winner new plant hunter Dr. Rick Schoellhorn. Sun tolerant impatiens, known as SunPatiens, bring on the color all summer long. Choose from a dozen different flower hues, including white, red and orange. This photo shows Impatiens x hybrida SunPatiens ‘Vigorous Magenta.’ Site in full sun to part shade. SunPatiens is a Dallas Arborteum Flameproof Plant.

The name says snow, but this sweet alyssum (Lobularia maritima) is a sunbathing beauty. Plants tolerate heat and humidity—just keep them fed and watered. Use Snow Princess in the landscape or extra-large containers. It needs too much water to stage a strong show in a small pot. Snow Princess is a Dallas Arborteum Flameproof Plant and is one of Dr. Rick Schoellhorn’s Florida Favorites.

Also known as summer snapdragon, angelonia creates a beautiful display that deer- and rabbit-resistant. The mix includes flowers in shades of pink, white and purple. Plants flower steadily through summer heat without deadheading. ‘Serenita Pink’ angelonia was a 2014 All-America Selections winner. The ‘Mix’ is a Dallas Arborteum Flameproof Plant and is one of Dr. Rick Schoellhorn’s Florida Favorites.

Fan flower (Scaevola aemula) boasts a tough-as-nails constitution that takes on heat and wins every time. An Australian native, scaevola has succulent-like leaves and beautiful lavender-blue blooms. You can also find scaevola with flowers in pink and white. This is a Dallas Arborteum Flameproof Plant.