how deep do tomato roots go
Plant Tomatoes Deep, Deep, Deep. Cover the stem up to the plantâs leaves. You can even cover the first few leaves with soil. Roots will grow along the buried stem to make the plant stronger. Each Bonnie tomato label urges you to plant tomatoes deep, so that a full 2/3 of the plant is underground. That means that if you buy a 10-inch tall plant, all but the top three inches is buried.