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Planting calendar for ZIP 46240 (Indianapolis, IN)

When to plant vegetables in Indianapolis, IN (USDA hardiness zone 6b). Typical last spring frost around Apr 18, 2027 (±13 days year to year), first fall frost around Oct 26, 2027 (±10 days).

Playing it safe? Spring frost holds off until about May 4, 2027 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Indianapolis, IN planting calendar for dates typical of the whole city.

Turn these dates into a plan: lay out your beds, place each crop on its sow and transplant dates, and get a reminder when it’s time. Free on one garden, no credit card.

Plan my garden for 46240

Month by month in Indianapolis, IN

January

February

March

April

May

September

Understand your frost dates

Where these dates come from

Frost dates for ZIP 46240 come from NOAA 1991-2020 normals (USC00121326 CASTLETON 2 S, IN US). You can look up that station’s record yourself.

Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.