<p>Offering lots of room for all your plants, flowers and crops, this large Gro-Zone boasts four sturdy shelves made from strong steel, which each provide enough space for up to six seed trays. The reinforced PE cover has a zip-up front panel which can be rolled up for total access and clipped easily to the top, while the shelves and central poles are removable so you can take some away to make room for larger plants. Whenever the front panel is rolled down and zipped up, your plants will ...