This product is awesome trust me! My wife bought me on last year and I love it! I will buy more of these they are so efficient. If you are limited for space this is the unit for you. Even a small space you could have 2 or 3 of them, they are great space savers. Grow 50 plants vertically with the only vermicomposting container! The patented, award-winning Garden Tower 2 grows plants vertically, enabling you to grow 50 plants or more in just 4-square feet - making it the ultimate space-saving gardening container! The new design easily rotates 360 degrees for optimal lighting and convenient watering. At the heart of each Garden Tower, 2 is a perforated compost column that allows for vermicomposting. With the simple addition of red worms, ordinary kitchen scraps convert to nourishing organic fertilizer--making the Garden Tower 2 self-fertilizing. A nutrient collection drawer also allows you to harvest compost "tea" (finished compost and worm castings) for easy recycling to the top of the Garden Tower to further increase soil fertility. See your vegetables thrive as the potting blend grows richer naturally over time. The Garden Tower also supports a much wider variety of large vegetables that cannot be grown in other container-type gardens, including cabbages, broccoli, squash, zucchini, cucumber, and melons. With supplemental lighting, the Garden Tower 2 can even be used indoors. I love that idea or even a southern exposed window will work. You too can grow vegetables in the winter.