Q.About my Lima beans
For the first time I planted Lima beans in my garden and was very excited to harvest recently, I was terribly disappointed when I cooked it was so bitter I had to throw the whole casserole away. what caused it to be so bitter??

Certified GKH Gardening Expert
Lima beans can be a bit tricky. Overcooking causes them to turn bitter.
Also, be sure to cook fresh lima beans before consummption as they contain compounds that produce cyanide when crushed or chewed. Boiling releases the toxins.
Here is an article that will help you with the general care of Lima beans: https://www.gardeningknowhow.com/edible/vegetables/beans/how-to-grow-lima-beans.htm
https://extension.oregonstate.edu/families-health/nutrition/should-i-worry-about-cyanide-lima-beans
https://extension.purdue.edu/foodlink/food.php?food=lima%20bean
https://shcs.ucdavis.edu/sites/default/files/documents/BeansCookingChart.pdf