I planted 3 tomatoes in my SFG...they seem to be doing ok but they aren't growing very tall. I planted them sometime the last week of May. They are getting flowers on them but I'm concerned that they don't seem to be growing tall. Any suggestions?
It's hard to say without knowing what varieties you planted. If you planted determinate tomatoes, they won't get really tall. Indeterminate, on the other hand, can grow into monsters. Be patient, let them develop roots, and they should be fine. Fertilizer or compost helps, too.
Here is a link that might be useful: tomato support