Old Madam Yu looked listless and asked, "I heard that someone in the south took the lead and inserted a type of root from overseas. It's called something…"
Yu Youyao smiled and said, "It's sweet potatoes."
"Yes, yes, sweet potatoes. I heard that they're resistant to drought and ridges. They can be planted into the ground and live easily. Moreover, they grow vines quickly. Their leaves, stems, and roots can be eaten. At this time, no matter what you plant, it's too late. There's only sweet potatoes. Even if they don't produce fruits and there are many vines, the leaves can still be eaten." At this point, a smile appeared on her face. "I seem to remember hearing you mention this."
