This idea is just so simple and really works. Give it a try. Question by : What is the average growth of tomato plants in five day intervals? my bio project is making me grow tomato plants at five day inervals. i did it for ten days so does anyonme know how much they would grow if one was in the dark and one in the light? Best answer: Answer by Amy PThey will start off slower and then speed up so maybe a 3rd of the height they are now? What do you think?… Read Article →