Just keeping the thread alive.....
This plant was hidden in the landscape and grew into the one gallon container...
In fact I have a few of these that slipped through the cracks.
The landscape container is 1 gallon.
The plants in the background are tomatoes...chocolate cherry and Celebrity (throw at cars type)....fave.
Here is the size of container I decided to use........before put it in the basement for seven months.
I kept the container small ....so I will not overwater.
.one gallon container

one gallon container
by
Hostafarian,
on Flickr
Great size to move up/transplant to. I chose this size. 3 gal
In spring I could step up the container again
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Repotting a plant
by
Hostafarian,
on Flickr
.
This size is too big.
More space, more soil area.
More chance to overwater the small rootball of this plant.
This plant will not fill the container with roots from now till frost.
Which is +- 40days
The key for me is to have the plant be slightly root bound, because it will then be very hard to overwater.
.
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This is too big to up pot for the winter
by
Hostafarian,
on Flickr
This is a good look for your rootball in a container.....nice and loose.
To some this photo appears that the roots are packed in this container.........
But the roots are only on the circumference of the container.
There is not one root in the center of this ball.
Plant is a 5 year old plant which has since been stepped up to a larger container.
Variable drip emitter is 24+ gph
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Healthy roots by
Hostafarian,
on Flickr