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Iowa March Planting Calendar
What to plant, transplant, and harvest in Iowa this March
Zone 5spring
🌡️ Iowa Frost Dates
Average Last Spring Frost
April 20 - May 15
Average First Fall Frost
September 25 - October 15
🌾 Direct Sow Outdoors
Plant these seeds directly in your garden in March.
✅ March Garden Tasks for Iowa
1Start tomatoes indoors
2Direct sow peas and spinach (mild zones)
3Prepare garden beds
4Apply compost
📅 Full Year Calendar for Iowa
📍 March Calendar for Other States
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