Root Vegetable

When to Plant Garlic in Indiana

Plant in fall, harvest in summer. Garlic is one of the most rewarding crops for the patient gardener.

The Short Answer

In Indiana, soil conditions are an important factor for garlic. Clay-heavy soils common statewide. Rich but can have drainage issues. Raised beds help with heavy clay. Garlic can also be planted in fall, 6 weeks before your first frost.

Indiana Frost Dates

Your planting dates depend on which part of Indiana you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Northern Indiana 5b, 6a Apr 25 - May 10 Oct 1 - Oct 15
Central Indiana 6a, 6b Apr 15 - May 1 Oct 10 - Oct 25
Southern Indiana 6b Apr 10 - Apr 25 Oct 15 - Nov 1

Garlic Planting Schedule for Indiana

Northern Indiana (Zones 5b, 6a)

Average last frost: Apr 25 - May 10 · Average first frost: Oct 1 - Oct 15

Fall Planting
6 wks before first frost

Central Indiana (Zones 6a, 6b)

Average last frost: Apr 15 - May 1 · Average first frost: Oct 10 - Oct 25

Fall Planting
6 wks before first frost

Southern Indiana (Zones 6b)

Average last frost: Apr 10 - Apr 25 · Average first frost: Oct 15 - Nov 1

Fall Planting
6 wks before first frost

Growing Garlic in Indiana

Garlic in Indiana's Climate

Your climate grows both hardneck and softneck garlic well. Plant in October-November, 6 weeks before ground freeze. Hardneck varieties produce scapes in June (harvest and eat them) and bulbs in July. Softneck varieties store longer. Your moderate winter provides enough cold for vernalization without the extreme that can heave poorly mulched cloves.

Soil Considerations for Indiana

Clay-heavy soils common statewide. Rich but can have drainage issues. Raised beds help with heavy clay. Loose, well-drained soil is especially important for garlic since the edible portion grows underground. If your soil is heavy clay, consider raised beds.

Indiana Climate & Growing Season

Four seasons. Hot, humid summers. Adequate rainfall for most crops. Occasional late spring frosts catch gardeners off guard. Garlic can handle frost well, which is an advantage in Indiana's climate. You can push planting dates earlier in spring and extend into fall.

Growing season length varies across Indiana: Northern Indiana (5b, 6a) has a last frost around Apr 25 - May 10, while Southern Indiana (6b) sees frost end around Apr 10 - Apr 25. This difference matters for garlic — adjust your planting dates to match your specific region.

Growing Tips

Plant individual cloves pointy-side up in fall, 4-6 weeks before ground freezes. Mulch heavily. Harvest when lower leaves brown.

Companion Planting

Plant garlic alongside these companions for better growth:

Tomatoes Peppers Lettuce Beets

Keep garlic away from:

Beans Peas

The Bottom Line

Garlic can be grown successfully across Indiana, but your exact planting dates depend on which region you're in. Northern Indiana gardeners should plan around a Apr 25 - May 10 last frost, while those in Southern Indiana can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Garlic Growing Guide National planting guide with all states Indiana Planting Calendar All plants for Indiana Garlic in Alabama Alabama planting dates Garlic in Alaska Alaska planting dates Garlic in Arizona Arizona planting dates Garlic in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

Ready to Start Planting?

Enter your zip code and pick your plant. We'll tell you exactly when to plant, start seeds, and harvest — based on where you live.

Find Your Planting Dates