I know this should probably be in the Q&A forum but I figured it might get more replies over here. How many tomatoes can you grow in the EB? My grandmother did the EB this spring and summer with great success with three plants. I know the planting guide says two but are there any real disadvantages with going with three?
As per the earthbox instructions, you're supposed to plant only two. Now over on the Tomatoville forum I was reading a thread about people saying they got a higher yield by planting two tomato plants in the same hole. But this is for in-the-ground planting and not for the earthbox. Would it work in an earthbox? I don't know. I'm sure that the Earthbox company has done a lot of testing to come up with the right amount of plants and fertilizer for the ultimate results. Still, I think everyone should experiment and break the rules sometimes. If you have more than one earthbox, you could do your own trials. Plant one box normally and put three plants in the other box. By the end of the season you'll have your answer.