Answer: Most agapanthus are only winter hardy to about zone 8, but this one is particularly hardy -- into zone 6. Your zip code places you in zone 6B or the warmer part of zone 6. It should be fine as long as it is planted in a sheltered location with protection from winter wind, in a well drained soil, and is heavily mulched in late fall. However, if your local nursery people have tried growing it or know gardeners in your local area who have tried growing it and failed, then you should probably defer to their experience. I hope this helps.
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