What Zone Does Bougainvillea Grow in?

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9b Click to see full answer. Also, what zones can bougainvillea be planted? Bougainvillea Plant Hardiness Zones Bougainvillea is a perennial only in the warm climates of USDA plant hardiness zones 9 through 11. In these zones, gardeners can grow bougainvillea outside year-round. can Bougainvillea grow in Zone 7? They thrive in USDA Zone 10, but will survive in Zone 9 if protected. In most of South Carolina (Zones 7 and 8), they can be grown as houseplants, in greenhouses and as container plants. They can also be grown in the landscape if treated as an annual. Similarly, where does Bougainvillea grow best? Bougainvillea is a sun-lover and it will grow best in a full sun position, in the open, facing due North (in the southern hemisphere) and due South (in the northern hemisphere). Bougainvillea needs at least six hours of full sun every day to thrive. Choose a place with rich, well-drained soil.Can Bougainvillea grow in Zone 5?Corydalis flexuosa requires sandy soil, goes dormant in summer but is hardy only in Zones 6 to 8 (we are Zone 5). Corydalis elata and its cultivars are hardy in Zone 5 but require consistently moist, humusy (decayed plant material) soil such as in a well-drained woodland.