What kind of fruit do you want to grow?

Just remember you're going to need a big pot...i'd say 20 gallons.

Water often, feed often...

I'd start with a peach or nectarine. A pot will dwarf a tree, or at least from what i've seen with my peaches in pots. If a tree only has x size root system, the top is going to be held in check.

I'm thinking either a peach or a pear - are peaches generally easier to grow? I originally wanted an apple tree, but I don't have space to provide a partner or two for pollinating =0)

As for the pot - my DH is going to build me a large wood box. My plan is to line it with landscape fabric and put drainage holes in it.

What sort of nutrient levels do you usually fertilize fruit trees with? For my container veggies I usually fertilize with an 18 - 18 - 21 fertilizer.

About 75% of my garden is container edibles. From my experience here are some fruit trees that produce well in containers.

-Peaches (One of my favorites for a container setting, highly productive for their size)

-Grapes (Produce well in a nice sized container)

-Berries (including blueberries)

-Apples (Had great results with dwarf apple varieties)

-Mulberries (Must be a dwarf variety ex. Weeping or Geraldi Dwarf)

-Pomegarantes (These will produce in a container setting as well.)

The rest of my edibles are experimental in a container setting or have not reached optimal fruiting age. I think dwarf cherry varieties would perform nicely as well.

My best recommendation for varieties and types of fruits would be to browse the bay laurel nursery dwarf plant selection. That whole list should be compatible with your zone. I would say most of those fruits/varieties will give a you decent yield of fruits in a container setting.

In conclusion, I would try dwarf apples, dwarf peaches, and dwarf cherries in a container setting.

Thanks for that list Nullzero! I wonder how hard it would be to import a tree to Canada from that nursery....

Its going to be a little harder to obtain dwarf fruit trees in Canada. I would actually work on obtaining dwarfing apple rootstocks, and graft nice apple varieties onto it. I would also work on obtaining genetic dwarf peach pits and grow it from seed. It may be hard to get stuff from U.S. nurseries if there is strict enforcement of plant material entering the country.

Sweet cherries do just fine. I have a Stella (that is getting too big) in a whiskey barrel (half) and it has done fantastic and set a pretty good crop this year:

{{gwi:20791}}

Its still young and i need to hack it down some since its getting too tall. I have no idea what rootstock, but i don't think its dwarfing.