i was curious just how fast they grow per year and what age/size they stop growing or even if they stop? any info would be appreciated

Lot of variables...

Weather that year, forage, water quality, competition for food, genetics, stress (getting caught, disease, etc), cover, and probably several more.

In general, North Texas has decent growth rates if you rank it among all areas that have LMB.

We stocked fingerlings in a new 30 acre pond in May of 2012 and most of the fish now weigh about a pound and a half. I've caught several that were 2.5lbs+, but the majority are smaller. We stocked 30k bluegill in 2011, so there is a ton of forage. I've read that on average a N. Texas a bass will grow about a pound and a half it's first year and about 1 pound/year after that.

On the average it is 2lbs. per year. This is info from the TP&W along with quite a few Fish hatcheries.

thats about what i thought thanks guys

Too many variables to give universal growth rates. I have seen 10 inch (less than 3/4 of a pound) fish that are 8 years old. In a public lake environment the average is 1 lb to 1.5 lbs a year. However, like any species there are some studs that might grow a 2 to 2.5 lbs a year.

In a private lake given the heroic management I have seen 3 lbs a year in a few fish. After the first couple of years the growth rate slows. If you grew a 10lb bass in 5 or 6 years you would be doing very well. I have a lake management friend who grew an 8 lb bass in 3 years. Genetics, food chain, and habitat are everything.

The 12.54 that was caught in Lake Naconiche was supposed to have gained 9 lbs. in three years. That is what an article I read stated. Don't know but if true that is awesome.

I have fished at a private bass fishery that had 6 ponds and a 40 acre lake. They would start with 5000 fingerlings and let them grow for 5 months then transfer them to the next pond. They did this so they could look at every fish to find the ones that grew faster. I was told some grew to 1 1/2+LBs in this time but it was only a small few. They did not breed the bass and always purchased the fingerlings. Each pond was named by the pound of bass you would catch in it. And after a time period they would transfer every bass to the next pond in line to feed them what they needed for their size. They found some bass grew slow for the first year then started putting more weigh on then the others in the group. The genetic beast they would find in each group after each time they would transfer from the ponds went to the 40 acre lake for personal fun fishing. Biggest buyer of this guys bass was over seas. I think it's China.