Ok so I think the results speak for themselves. I planted 10 tomatoes in Dollarama fabric bags. I planted 5 tomatoes into the ground with lots of good soil and manure in both. The plants in the ground made it to about 5-8 feet tall depending on the variety, with a few tomatoes on each plant. Nothing too exciting. I watered and fertilized them all regularly.
The tomatoes in the bags climbed up the railing, and I wrapped them around strings on the gazebo, they grew up and over the gazebo and then folded back down. I would estimate they got between 12-14 feet on average, and really produced nicely. This side gets a bit more morning sun, but the in ground tomatoes get more afternoon sun.
Here's a link to my previous "Mini Grow Bags" post about making and using the fabric grow bags. I planted up into them when my seedlings outgrew their homes in the seed trays.
As you can see they had a nice healthy root structure when it was time to plant them out at about 9 weeks old.
Here you can see them on the right side.
They grew so fast, I would take weekly pictures of them and was just amazed.
By mid July they were taller then me,
well on their way to the top of the gazebo.
My faithful tomato guard. He would check on them daily to see if anything was ripe.
He was thrilled when he realized he could reach them from the deck ahahha.
Here's a view from under the gazebo, and they're several feet above it.
You can see the roots came out of the bag and went into the ground at the bottom, I had to really pull the bags to get them out.
You can also make your own Grow Bags of any size using landscape fabric and a sewing machine. Here is the link to the small seedling size grow bags I made this spring. How to make your own Mini Grow Bags
Please comment below if you have any questions, or have tried different grow bags yourself.
Here's a YouTube video I made showing the roots in more detail.