What would cause one plant out of 20 or so, not to bear fruit. It flowers but never bears fruit. It looks normal to me. The compost in the hole it was planted in is no different then the others, and they were all started inside. I took some pictures so you all can see. some of my plants are 9' tall....the others I actually topped off at 7' because I didn't want to be on a ladder to harvest my tomatoes LOL. The tomatoes are heirloom Rose.

Man, your plants sure are tall! But I don't even see any flowers on the plant in your picture. What I have read for big plants and no fruit is too nuch nitrogen but since your other plants have fruit that might not be the reason. I can't think of anything else though except that heirlooms are fussy about producing.

that plant has bear flowers at least 4 different times this summer, it would come in waves. where as the other plants would/are bearing flowers rate up till today. just seems strange. I think its just that that one plant has something genetically wrong with it.

It is very puzzeling.

It's hard to say, if you started the seeds yourself, you would expect them all to be the same, but there could have been a different cultivar mixed in. In any case, I'd prune it back and not water it much. If it feels like it might die, it could go into a fertility frency, lol, but it's getting kind of late now to have them grow and mature before frost. Maybe not in your zone. What can you loose, your not getting any fruit doing what you have been doing. Have you continued to have really hot days? Sometimes they don't like to set fruit on really hot days either.

Ya, we have been swinging from hot n humid to cool days....gotta love that Maine weather, lol