Gold Nugget, along with a handful of other mandarins, was developed by the Univ. of California at Riverside (not at Univ. of Florida like most mandarins that will give some type of decent production in Florida). There are a number of "Cali mandarins" that produce well in Cali but not in Florida. From everything I have read and researched, our climate does not lend well for this mid-late season mandarin (there is a UF/IFAS link explaining that I am not currently able to locate), Just cause it is a citrus does not mean it will produce successfully here in Florida. It is truly no different than Autocarpus, some will produce well here and some will struggle at best. Same with Cherimoya (and I am not referring to the variety or two that Har as worked with here that supposedly could produce fruit).