Jiffy Seed Starter Kit with Superthrive, 16 Cells is for both indoor and outdoor gardening, allowing you to easily start your favorite flowers, plants, and foliage. This versatile kit can be placed directly into the ground or into a planter without disturbing the seedlings or roots, ensuring a smooth transition for your plants. It includes 16 large peat pellets designed to support a stronger root system, i for growing larger plants such as vegetables. To help increase your gardening success, the kit also features a Superthrive plant vitamin packet and a dome that maintains humidity and warmth during the crucial germination period. The kit measures 11 inches wide by 11 inches long, making it a convenient size for any gardening space.