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["Donna &/or Kieran" <holycow@cookeville.com>]

Helene,

    As far north as you are, I think that any citrus is not going to do much more than entertain you.  Meyer or Ponderosa lemons would do the best of any citrus for you, if you can provide them with sun and keep them from freezing in winter.  They don't require high temps in the winter, unlike many tropical plants and trees.  All they ask is not to be frozen.  45 degrees F would be fine for them in the winter, so if you have some sort of greenhouse where you grow cool season veggies with minimal heating, they would be happy.  But if you have to build them a place, you may find that ordering a box of lemons from the citrus belt is cheaper.    Donna