Stretch out your green thumb and be ready to enjoy lovely plants with the Jiffy 12-Pellet Greenhouse. These expand to form a pot and soil, all in one. It is ideal for starting seeds for flower and vegetable gardens, so they have a safe environment before going out into the outdoors. These spheres in the greenhouse starter kit are made from sphagnum peat moss, a rich, high-quality growing medium, so your seedlings can get the best start possible. A clear plastic dome retains heat and moisture, so little is needed from you to continue creating the growing environment. The Jiffy greenhouse starts 10 plants from seeds or cuttings, so you can enjoy a variety of different types in your garden. Kids and adults alike will be able to start their seeds and watch them continue to grow. Give your flowers a strong start with the Jiffy 12-Pellet Greenhouse. Jiffy 12-Pellet Greenhouse.