What size pot are most of you using for a mature fig tree? How large a tree can that pot size keep happy and healthy? How often do you have to repot, replace the potting medium, or amend it?
Got pictures?
Thanks!

I can only speak for myself.  I've been doing this for 4 years, so I'm not a seasoned pro.

My default destination is a 10 g "squat" pot.  Often I use smaller pots, but only if I've runout of 10s.  I find the 10's relatively easy to move.  When the planting medium is dry, I can pick them up and carry them.

For the better prospects, I use 13-15 g pots.  To move these, I need a hand truck.

For the best few, I use 25 g pots, if I can find them.

All pots are SIPped.

So far, I've been mainly up-potting.  But I expect to prune roots and refresh medium every 2 years (10 g) to 3 years (15-25 g).

If you take a look at drivewayfarmer's pix on the thread where he is offering plants for sale, you can see what is possible.    

SIPped = ?

Here's some clarification on pot sizes that might be useful for some people.

10-Gallon 14 1/2 X 14 1/2
10-Gallon, squat 17 1/4 X 12
15-Gallon 17 1/4 X 15 1/4
15-Gallon, squat 19 1/2 X 12
20-Gallon 19 1/2 X 17
20-Gallon, squat 22 1/4 X 13 1/8
25-Gallon 22 1/4 X 18

I am using 7-10 gallons also, more than that and its a pain in the back.

Also depends how many varieties i grow.  If i had no more than 10 varieties i would take 15-20 gallon pots.

20-25 gal pots. That is the biggest that I can easily lift without a hand truck. I use a light weight mix of 33% Promix, 33% Coco Coir and 33% #4 Perlite. I add 1 gal of soil top-dress ever 6 months. Right now i'm trasplanting 200 Figo Preto Figs into 20-25 gal pots. The goal is to harvest 500 figs per tree/year, by the third year.

Sub-Irrigation Pot. Or sometimes Self Irrigating Pot.

Basically, it a water reservoir in the bottom of the pot, and some from a wicking to draw the water up into the soil.

Lots of factors determine which size I use.
Early spring if I am up up potting newly rooted cuttings I will go right to a 15. Right now since my season is 1/2 over I am going into 7-10 gallon pots. Next year those will go to 25's.

Really good productive varieties will get 25's. Everything else I stop at 15's.
For me, there's a moving and storage factor involved. 15's I can move pretty easily. If the plants are to large I can grab one with each hand and move them easily..
25's are heavy, especially wet. Unless your Sid, 25's are a 2 man job.
Some people go 40-50 gallon.. I wouldn't advise it unless your a body builder or have a forklift.
If your up north then 15-25 is a good size and with proper pruning you will get a lot of figs per tree. Down south hopefully you just go in ground and forget pots altogether.

Cliff -- Thanks for filling in for me on the SIP question.

My progression thus far has been...rooted cutting in a solo-sized cup, to 1 gallon, to 3 gallon...and some have been in (i think) 5 gallon SIP's from the big box stores, just cause that's what I had at the time.

I agree that the sweet spot for me is going to be 10 gallon. 

My "final" pot size is 15 gallons. Every 3 or 4 years  1/3 of rots need to be removed.
On the way to 15g I use 7 g,
5g,3g, and 1g.
I use black nursery pots.
I have recently started experimenting with biochar and will hopefully have something semi-intelligent to report in the next couple years.

Richard,
The pot size measures, are they outer diameters or inner?

I have a (very) few destined for half barrels but the majority of my pots are 6-gallon HDPE buckets. I have a bunch of trees and I'm in Z6 so I have to move them all into the garage every winter. 

The 6-gallon is a standard size for grape-juice-for-wine buckets. So, you ether need to make and drink a lot of wine (blush) or find a place that sells the stuff and make a connection for recycles...

I wrap them in burlap tied with sisal string... And they don't look too bad....

 

I use whiskey barrels that are cut in half and buy them at the hardware store.
Before I fill them, I go to Harbor Freight and get a 4 wheel moving dolly and bolt that to the bottom of the barrel. Makes it very easy to move around.

No disrespect but our search function works extremely well.  Just search for "pot size".  And look at what you get:

http://figs4funforum.websitetoolbox.com/search?keywords=pot+size&searchin=subject&member=&do=findposts&replies=atleast&numreplies=0&daterange=0&custdatefrom=&custdateto=&sort=&order=desc&radio_showas=threads&btnSearch=Search&action=doSearch

Please give it a try!