Oranges in Minnesota

Calamondin oranges are easy houseplants to grow. Here is the orange harvest from 2011: 112 small but delicious oranges which I made into 4 pints of marmalade.

Zone 4 winter temps

We reached zone 4 average winter low temperatures the week of Jan 17, 2011. It was -24 degrees F at the Horticultural Research Center in Chaska, MN. Although grasses are covered with a thick blanket of snow for insulation, this air temperature is what determines the winter hardiness zones, USDA Zone 4 is -20 to -30 degrees F.  Good news for researchers!

Grasses for wet areas and wildlife

QUESTION: 
I  have a 2 acre lowland thats wet in spring can get dry in summer, the soil is like a peat moss consistency, alders grow in it and also grass, looking for something to fill this area in ( tall grass)  so i can utilize this northern Wisconsin area for wildlife. 

ANSWER:  
 Here are some good native grasses that will grow in the lowland site you describe:
switchgrass, Panicum virgatum
big bluestem, Andropogon gerardiiprairie cordgrass, Spartina pectinatabluejoint, Calamagrostis canadensis
tussock sedge, Carex strictabottlebrush sedge, Carex comosa
   I would imagine that right now you might have a lot of reedcanary grass (Phalaris arundinacea) in this area. This very aggressive grass is difficult to eliminate. You might want to contact the local NRCS office nearest you, since they could help you to identify any plants in the area and they are also a source of seed or plants for restoration work. Good luck.