Zone 7 Perennials In order to make shopping for your garden easier, we have gathered all of the perennials we offer for hardiness zone 7 here. Although it isn’t an everyday occurrence, winters in zone 7 can be as cold as 0 to 10 F (-18 to -12 C), so it’s important to keep this possibility in mind when selecting flowers for zone 7. Bloom-A-Thon® Pink Double Reblooming Azalea Azalea. Select from an extensive offering of perennials that thrive in full sun. Read on to learn more about the best types of zone 7 flowers. While some plants wither in direct sunlight, many sun-loving perennials thrive in these conditions. Give it a go in zones 7 to 11. The Tea Olive prefers well-draining soil in full sun to part shade. Plus SAVE 20% when you buy any 3 plants combination. Achillea Agapanthus Agastaches Alliums Alstroemeria Amsonia Anemone Asclepias Asters Astilbe Astrantia Baby's Breath ... Full Sun Perennials. It responds well to pruning so you can keep it contained in smaller spaces, or hedge it. Growing Flowers in Zone 7. It grows 10-15 feet tall and spreads around 6-8 feet. 4. zone 7-8 (418) zone 9-10 (250) Perennials View all Perennials. A planting location is considered to have full sun if it gets at least six hours of direct sunlight on most days. West of Texas, smaller belts of zone 7 are located in New Mexico, California and up into Oregon and Washington. If you aren't sure about your hardiness zone, click on the link under the search box that says FIND HARDINESS ZONE, and enter your zip code. Portions of eastern coastal areas are also able to sustain zone 7 perennial plants. Visit reputable garden centers and nurseries to find popular and well-suited perennials for your particular region within zone 7. And the category of plants that prefer full sun is vast.