In only 10 days you can have 3 large trays worth of fresh wheatgrass juice. Tribest Sproutman's Wheatgrass Growers, designed by Sproutman Steve Meyerowitz, the world-renowned expert on wheatgrass and sprouts brings you a quick and easy way to grow wheatgrass at home! In just 10 days, you can have 3 large trays of fresh, juice-bar-style wheatgrass. Sproutman's Soil-Free Wheatgrass Grower works with or without soil - so you can grow this therapeutic plant conveniently at home. Sproutman's Soil-Free Wheatgrass Grower grows wheatgrass with or without soil. Either method provides you with high quality, dark green grass. So, why not save time and eliminate the hassle of dealing with dirt? Research shows grass grown without soil is nutritionally equivalent to soil-grown grass.