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Truthfully, I haven't had fig trees before. My neighbor (and uncle) has some that I love the fruit of, so I got some myself.

That said, I don't think he does anything. They need watered the first growing season, if there's not enough rain, and that's it. They grow well here with no insect pressure, climate issues, etc.

Our winters are mild, and we rarely get below-zero temps. Usually a couple overnights each year.