When to Plant a Garden in Indiana?

Carrots and asparagus can be planted in an early garden.

Indiana's long shape allows the state to experience moderate climates in the far south and much colder weather in the north. Purdue University notes that the last spring frost date for the far south is April 15 and moves up the calendar the further north a garden is planted. The lower third of Indiana has a last frost of April 30; the middle portion, May 5; and the north, May 15th.

Root Vegetables

Root plants can get an early start with a planting date several weeks before the end of frost. This includes radishes, carrots and beets. If room is available, many gardeners replant these in August for an autumn harvest.

Cool Season Plants

Cool season plants include spinach, cabbage, lettuce and kale. Leafy plants do not do well in a hot summer sun, so planting them a week or so before the last frost date, and again in early September, is best.

Summer Plants

Plants that need a long summer to harvest are best planted immediately after the last danger of frost. Tomatoes, eggplants, peppers, okra and corn grow best when the sun has had time to warm the soil.

References

• Purdue University: Indiana Vegetable Planting Calendar
• "Month-by-Month Gardening In Indiana"; James A Fizzell; 2001

Resources

• Indiana Organic Gardeners Association