In response to Sarah

Yes! Citrus can survive in the upper midwest!

I picked up these two fine specimens ($29.99 each) at Lowes here in the Roch. I could have picked up a Mexican Lime (aka Key Lime) but decided to wait until one of my seeds grows up.

Mandarin (Satsuma variety). This will produce some b-e-a-utiful Mandarin oranges. They will be ready for picking this fall.

Lemon Drop (aka Sunquat). This is a cross between a kumquat and a lemon tree. You eat the whole fruit, rind and all!

A baby mandarin orange. Yum

As you can see these plants live on the rocks outside my front door. They'll live out there until about mid-September, when I start weening them to the indoors. They'll require lots of light during the winter but it's OK: I have south-facing windows. Come April-May next year I'll reacquaint them with the great outdoors in preparation for more fruit.

Hooray for citrus!