Bean planting guide
When to plant beans
Plant bean seeds directly in the garden after the soil has warmed. Bush beans can be sown again every two weeks to spread out the harvest; pole beans normally keep producing and do not need the same schedule.
Planting method
Sow outdoors
Beans are normally planted directly in the garden.
First planting
After soil warms
Cold soil can slow growth or cause seed to rot.
Bush bean interval
Every 2 weeks
Use repeated sowings for a longer harvest.
Seed depth
About 1 inch
Adjust for seed size and packet directions.
Bush bean planner
Plan plantings two weeks apart
Choose the first date
Wait for genuinely warm soil
The reviewed source does not provide one nationwide soil-temperature number. It warns that bean seed planted in cold soil may rot and growth will be slow. Use local soil conditions, the current forecast and your seed packet to choose the first date.
Check the final date
Leave enough time before fall frost
The planner repeats a published two-week interval, but it cannot know your variety's days to maturity. Compare the final sowing with the seed packet and your usual first fall frost before planting.
Bush beans and pole beans need different plans
Bush beans
Bush plants grow about two feet tall and usually do not need support. Because they flower and set pods over a shorter period, repeated plantings can spread out the harvest.
Pole beans
Pole beans are climbing vines that can reach six feet or more. Install a trellis at planting; the plants can continue flowering and producing until frost.
Spacing
The source lists bush bean seed four inches apart with two to three feet between rows. Pole beans can be planted four inches apart along a trellis.
Avoid excess fertilizer
Beans can work with beneficial Rhizobium bacteria and do not need as much fertilizer as many crops. Test the soil before adding phosphorus routinely.
Do not turn a Minnesota cutoff into a national date
The Extension page gives an early-August succession cutoff for much of Minnesota. This site does not reuse that date nationwide. Your last useful planting depends on local fall frost timing and the variety's days to maturity.
A practical next step
Plan beans with your local season
Warm-season crops need more than a frost-free date. Check soil warmth and nighttime temperatures before planting outdoors.
- 1. Local dates
Find spring and fall frost dates
See historical 32°F freeze estimates and the matched NOAA station for your ZIP Code.
- 2. Season length
Estimate the frost-date growing window
Compare cautious, middle and less-cautious spring/fall date pairs.
- 3. Harvest timing
Estimate maturity from your seed packet
Use the starting point printed on your seed packet; days to maturity can count from sowing, emergence or transplanting.