GrowZone

Month planting calendar

What to plant in May in Indianapolis (46204)

In Indianapolis, ZIP 46204, zone 6b, here is what you can start indoors, transplant, or direct-sow in May, and what to wait on until later.

Source: indianapolis-intl frost station, USDA zone 6b, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

Start indoors

No supported crops start indoors in May for ZIP 46204.