Over 1000 plants for Pick Your Own July thru September. Video Rating: 5 / 5 Question by libra: is organic soil good for tomato plants? I want to plant my tomato plants today and want to know if organic soil is good for tomato plants. what is it a mixture of? what else should i mix it with? Best answer: Answer by goofinoffOrganic matter improves any soil, clay, sand, or whatever. Not sure what organic soil is. Tomatoes would love soil with organic matter in it, as this provides nutrients and good tilth. Give your… Read Article →