Replace your old seed plates with a new set of standard plates that include 18100 sweet corn with a 7.2 in/18.3 cm spacing, 18101 radish, leeks, spinach with a 3 in/7.6 cm spacing, 18102 carrots, lettuce, turnips with a 4-1/2 in/11.4 cm spacing, 18103 beans, small peas with a 3.6 in/9.1cm spacing, 18104 jumbo peas with a 3 in/7.6 cm spacing, 18105 beets, okra, Swiss chard with a 3.6 in/9.1 cm spacing.