In the St. Louis area Chocolate Flower, Showy Milkweed, Common Milkweed and Butterfly Milkweed can be planted outdoors in late March.

In the St. Louis area Leeks, Fennel, Collards, Swiss Chard and Broccoli can be transplanted outdoors in early April. In the St. Louis area Radishes, Parsnips and Carrots can be started from seed outdoors in early April.

In the St. Louis area zinnia, basil, stevia and rosemary can be planted outdoors in mid-May.

In the St. Louis area, eggplant, bush beans and pole beans can be planted outdoors in late May.

In the St. Louis area, lima beans can be planted outdoors in mid-June.

In the St. Louis area, milkweed and feverfew can be planted outdoors in mid-August.