Yes lima beans can grow without soil but it's not the soil that makes the difference it is what is in the soil................................ the nutrients.
Lima beans grow better in soil.
soil
Why green beans do not grow without soil
Beans prefer soil that is near neutral in pH. 6.0 to 6.8 is preferred. So lima beans prefer a slightly acidic soil.
I think you use soil I am not sure.
Coffee does not grow lima beans. However, used coffee grounds can help lima beans grow properly. When combined with fertilizer and other soil additives, coffee grounds can help create a well-drained, organic loam soil that helps lima beans thrive.
The best soil is potting soil for a Lima bean growth.
You can germinate lima beans by putting them between two paper towels, covering them with something that light does not get through like a newspaper and keeping them wet.
The amount of time it takes for a lima bean to grow depends on several factors; depth of seeds in the soil, temperature of the soil and the condition of the soil. Seeds start to germinate at about 5 days and can be 5 inches tall in just a little over a month.
Green beans grow better in soil.
soil
in soil, i did a experiment on it and some of the multiple beans died in the soil and the others didn't grow as tall or as healthy as the ones in potting soil. i am now planting the potting soil ones in my garden as the others in the dirt are staying on the window.
Beans grow faster becasue soil has all the essential nutrients for the bean.