Answer: Bougainvilleas are tropical plants and quite tender to frost. If you have a sunny western or southern exposure, next to a building where heat will be absorbed and cold winds will be blocked, you may be able to keep a bougainvillea alive. I've found that once the roots are established (3-4 years), the tops can take colder weather and even if they die down during a heavy frost, new stems and foliage will appear the next spring. I'm afraid bougainvilleas are just not hardy enough for growing in Sacramento, but you can certainly try!
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