I had photos that might be of help to some of you..... for upsizing your containers. From small to large....this is just a visual.
A five gallon buckets on the right ....for scale.
My max size for me is 35-40 gal containers because of size restrictions to overwinter in my home..
My max is about 100 pounds and 12 feet.
But a good size to HOLD your plants is a 14+ gal container.....this is just a zone 5 recommendation
Potsize
by
Hostafarian,
on Flickr
Up potting Progression of using larger pots
by
Hostafarian,
on Flickr.
Here is a photo of all the plants pulled out of the landscape and lined uo in the yard to process in the house for the winter. The plants which I want to keep small are in smaller containers.....If I want to grow them out and make them flower .....I move them to a much larger container.
Winterizing plants
by
Hostafarian,
on Flickr.
Here is a photo of the same plants that were stored in my basement about six months later .
Container size does matter as well as good gardening practices.
Untitled
by
Hostafarian,
on Flickr
It all comes down to your soilless mix, water and plant requirements.