4"x4" pots is not a bad way to start your tomatoes. I use a biofungicide when I start seedlings to reduce the chance for damping off. (Gardens Alive "Root Guardian" biofungicide for soilborne diseases) Probably how a big greenhouse would do to start their tomatoes. (I used peat pellets and biofungicide and up potted to 4"x 4" pots.) Should be easier once you have your greenhouse. In addition to the the tomatoes you should be able to grow cucumbers on twine!
Anyway, enjoy your tomatos and canning season!
Plastic tanks that had food ingredients, namely Soy Lecithin. I wash them out with biodegradable de-greaser because bulk Soy Lecithin is basically an oil. The de-greaser is low suds so it rinses out easily.
No canning. That would be quite a chore with mainly cherry tomatoes. I’ll eat what I can and give the rest away.
Yep, any vine will grow on twine. I might use cattle panels for anything that doesn’t get too tall. I have two Dragon’s Tongue pole bean plants that I ran up one string and are now running down the horizontal support chain that the strings hang from.