Bitter melon (Momordica charantia), also known as bitter gourd, is a sour, green fruit, is a vine native to India and other Asian countries. Light requirement: Full Sun, Medium sun Sowing method: Direct sow. Avoid covering the seeds with soil. Keep the seeds moist. Days to Maturity: 38-40 Days Size at Maturity: Generally taste best when harvested when they reach a length of 6 – 7 '' Plant Spacing: 15’’x 47’’ Planting time: All Season Bitter melon thrives in heat and humidity but is very cold sensitive, so do not start seeds until after all chance of frost has passed. To plant bitter melon seeds, you need to: Choose a sunny location. Prepare the soil by working it to a depth of at least 8-10 inches. Sow the seeds about 1 inch deep and 4-6 inches apart. Keep the soil moist but never wet or dry. Seeds should germinate in around 10-15 days at a soil temperature of 25-32°C. Young seedlings will need protection from pests, pets and weather until they are established.