Ortho put out a very nice little book on "Gardening in Containers". It says
that a 6 gallon paint bucket is just fine. (It even tells how to grow corn
in containers.)

"ROBERT O'REILLY" wrote in message
om...
i heard that you can take a 55-gal. drum,put about a foot of soil in
it, and plant potatoes. as the folage grows, keep adding soil till the
drum is near full. let grow for whatever time a potato takes,(never
grew them before), and dump the drum, yeilding alot of potatoes in a
small space. heard this will work for sweet potatoes as well. anyone
have any insight on this?
thanks for any and all info.