In a soil temperature of 68 degrees Fahrenheit, lima beans will germinate within 18 days. In warmer soil temperature of 77 degrees F, germination will occur in seven days. Temperatures that are too cool will prevent the lima bean seeds from germinating. When combined with wet soil conditions, the seeds may rot.

Will dry lima beans sprout?

Compared to other beans species, the larger size and thicker seed coat of lima beans means germinating them in the garden can take some time. While you can simply plant dried lima beans without any treatment, soaking them in lukewarm water first will increase the speed at which the beans will sprout.

How long do lima beans take to sprout?

How to Grow Lima Beans From Seed. Lima bean seeds take roughly seven to 18 days to germinate.