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« on: March 24, 2023, 07:01:09 PM »
TFH is correct. The late William "Bill" Whitman of Bal Harbour (think North Miami Beach) had several fruiting trees outdoor, in the ground. His location between the Atlantic ocean and Biscayne Bay had a moderation effect on temperatures when compared to the mainland. It took 17 years to get the first fruit. Three trees grafted from Mr. Whitman's trees , further supported with nurse grafts, produced fruit somewhat quicker (guessing maybe 10 years?) in the Whitman Rare Fruit Pavillion at Fairchild Gardens, which had a 17 foot soil base of acidic sand. Ultimately 2 of the original trees, and numerous other rare fruit trees, were destroyed to make room for...and aroid garden. The current woman who has a fruiting tree has it growing in a large pot with potting soil. Her tree is growing outside, protected from the north winds, also took 17 years before it first fruited.
Bottom line....it can be fruited in South Florida if one is patient, and can provide a slightly acidic soil. As TFH also said, a greenhouse would be very helpful to lessen the time to first fruiting.
In contrast, I planted a 6-foot tall mangosteen in the ground, including amendments to lower the natural 8.2 pH soil of western Dade County, and it was dead within 6 months! 🙁