Ng Sui Mo learned how to farm with his mum since he was young. He was familiar with market location and characteristics of crops. Ng Sui Mo’s mother grew watercress, water spinach and sweet potatoes in Wong Tai Sin. At first, she took her produce to Blacksmith Street’s bazaar next to Sha Po Village to sell. As the bazaar only opened in the morning, villagers went to Hong Kong Island to sell their vegetables in the afternoon. Sweet potatoes took about three months to harvest. The secret behind their growth was to ensure the soil was deep and soft enough to enable the deep planting of the seed potatoes. Potato seedlings could also be used as pig feed. While growing potato seedlings generally required fertilizers for accelerating growth, such chemicals could not be used for growing sweet potatoes as they would adversely affect the harvest. Ng Sui Mo’s mother farmed pigs and grew vegetables at the same time. When she sold the pigs, she would inform customers to collect the pigs at their home. When Ng Sui Mo had free time, he would help his mother out around the farm. At that time he had a proper job.