Okay here's a little more information - my plan is to use 20 gallon smart pots or a similar concept. The 20 gallon should be deep enough for a strong root system yet the fabric will allow for air circulation to assist in keeping them cool. The 20 gallon size also allows for the use of cages. I chose the San marzano originally because I plan to make and can saucec. I was looking for a determinate type and the website I had consulted had a misprint where they listed the San marzano as determine instead of indeterminate. I only realized after I'd sowed the seeds so I suppose I'm committed now. Am growing the regular sized San Marzano variety purchased through Seeds of Change. I live in an apartment so in ground planting is not an option.