After a grueling two decades of personal hardships and natural disasters, Renee Brown finally found a peaceful haven for her small family. Now on a large, old estate she bought 150 miles from her native New Orleans, she is expanding her business developing natural products and reconnecting with her family’s history. Ms. Brown, 43, started by adding to the large and varied garden left by the previous owner. A portion of her 2 acres is filled with trees, including more than a dozen citrus, plus olive, peach, pear, cherry, kumquat, papaya and guava. She also planted eggplant, tomatoes, beans and herbs, and her favorite flowers—orchids.

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