Zones: 3 to 8 Bloom Time: Late summer to fall Height: 18″ to 24″ Spread: 18″ to 24″ Sedum ‘Autumn Joy’ is a succulent that stores water in its leaves and prefers dry, poorly fertilized soil. If you’re searching for the best flowers for full sun then see our list of heat tolerant flowers. AMAZING ANNUAL FLOWERS FOR SUN 20 selections for full-sun containers, beds, borders, baskets, and window boxes By Karen Chapman. Pavonia (Zones 8-11) Dahlias generally thrive in Zones 8 to 11. Native to Africa and also known as vinca, this is one of the most heat tolerant of all annuals. So you have to choose wisely when selecting annual flowers for the sunny spots in your garden. If you find your ageratum becoming untidy, cut back your plant to a third of its height every couple of weeks. These durable plants thrive in the sun, and are drought tolerant. Well suited to full sun or partial shade, most varieties are less than 12 inches tall, making them great candidates for window boxes or fillers in larger containers. Many perennials with deep tap roots and water-conserving leaves can handle lots of sunshine, but annuals that never get the chance to develop an extensive root system tend to struggle. It can get pretty hot sitting in the sun all day. Sun Perennials for Zone 8 Explore our brand new lineup of sun perennials for zone 8 for the hardiest and top performing flowering plants for every sun-kissed spot in your garden. Jacky Parker Photography. Pentas. 5. They really like full sun, but as with most plants, if you live in a super hot part of the country, you should try to provide them with a bit of afternoon shade. Heat Tolerant Flowers 1. Artistically designed, colorful containers are a signature of an inviting patio, yet knowing which plants can tolerate especially sunny locations can be challenging. Thriving in full, hot sun, it blooms prolifically from early summer until frost. It is particularly useful as a ground cover, because it grows equally as well in sun or shade. Share: Is your garden ready for summer? Further south, they will remain evergreen. Some plants love it; others faint. They can go weeks without supplemental watering, continuing to display their cheerful blooms the whole time. Successful gardening depends on an understanding of your yard’s microclimates, or different sets of conditions within certain areas. 2 of 25. Bee Balm If you're looking to add color to the garden and attract birds, bees, and butterflies, bee balm is the right flower for you. Be prepared to be wowed by the excellent variety in flower color, form and height. Beautiful pentas flowers attract pollinators like bees, hummingbirds, and sunbirds due to the nectar. All these flowers can bear the tropical heat and thrive in full sun. SHOP NOW. The flowers start out pink and turn to bronze as the weather gets cooler. You can also grow them in containers. This will generate sturdy new shoot growth and plenty of new flowers. Annual plants in USDA Hardiness Zones 3-8, they can be grown as perennials in Zones 9-11. Though blooming—which occurs in late spring—is much better in the sun. Full Sun Flowers & Plants for Zones 8-9. Check out!