Selection is important. Kumquats Meyer and Satsuma Mandarins are the most cold hardy.”.Golden Special”  grapefruitand navel Oranges and ‘Yen Ben’ lemons can survive quie hard frosts once established.Bearss Lime and “kaffir’ lime can take quite hard frosts once established. Plant only citrus that has been budded on to trifoliate rootstock except for Meyer Lemon which will grow … Continue reading GROWING CITRUS IN MARGINAL CLIMATE