Do you mean the size of the container to germinate and then grow your seedlings or the size of the container to transplant the seedlings to for growing on the deck?

Any small container with holes and a couple of inches of seed starting mix will work for germination. Then you can transplant them to large foam or plastic cups with holes in them until time to transplant outside.

For growing containers 5 gallon is the minimum recommended size used but many of us find 10 gallon minimum to work far better - especially for indeterminates. Your dwarf will do ok in a 5 gallon and so will the determinates but you will have to water and feed frequently.

Hope this helps.

Dave

Digdirt is right -- 5 gal is the minimum. A few years ago I thought I could get away with some of my grape toms and paste toms in 3 gal containers, I was wrong. They ended up quite stunted, essentially rootbound.

agree with Dave - a few years ago I spent the better part of the summer repotting, repotting and repotting again when my indeterminate toms consistently grew out of pots. Before I was done I had spent a peasant's fortune on pots! Jump straight to the 5 gallon at minimum, bigger if you are so inclined.

I grew roma (determinate) in swc's made from cat litter buckets (4 gallon)last year, and they did fantastic. I also got some seeds from Trudi this year, and will be growing "gartenperle", as well. Just as an experiment, i'm planning on growing several indeterminates in these same planters to see what will/won't work in them - but will grow my main crop in 31 gallon containers.

EG

The smallest container I use is 32 gal, the majarity are 45 gal, with one plant to a container. Use Als mix and straw for a malch n your good to go. I wood not consider useing any thing less.