In the St. Louis area mustard can be harvested in mid-September.

In the St. Louis area parsnip can be harvested in late October.

If planted early enough, you can start harvesting scallions in early March.

In the St. Louis area you can start harvesting collards and parsley in mid-May.

In the St. Louis area you can start harvesting onions, spinach, lettuce, oregano and radishes in late May.