Support like what? So I can go to the store and get it. Is it gonna grow tall even though it’s cherry tomatoes?
You can use bamboo canes and twine to train the plant up and support the big stems... Or a tomato cage...
I prefer to use twine hanging from somewhere abit like this and use plastic clips as it does less damage to the plant...
Not sure what size plant pot you need, it depends on type of variety, like its grafted it will get quite big... In my brief experience cherry tomatoes do seem to grow crazy!!!
Pots Containers - Grow Tomatoes Easily
What size pot, container should you use for tomatoes? For typical varieties of tomato plants use a very minimum of 15 gallon container. The smaller the container size the more often you will need to water, the smaller root system you will have resulting in a smaller top and less…
growtomatoeseasily.com