The red yard long beansDifferent varieties of yard long beans are a popular addition in salads, stir-fried and vegetable curries all across Asia. The deep maroon colour bean grows up to 20 to 24 inches in length. These beans do well in hot and humid climates and take about 70 to 90 days to mature. Their crispy and tender texture makes them a perfect addition to all kinds of savoury recipes.