Achieve earlier maturity and heavier yields! A pot wall of compressed peat is a nearly perfect environment for root development. Since Jiffy pots are planted 'pot and all' there should be no transplanting set-back when plants are set in the garden. This results in shorter production time, earlier maturity and heavier yield. Jiffy pots are also very convenient and easy to handle. Pots are available in round or square, from 2¼ inches to 3½ inches in diameter.