Tirreno Melon80 days. Tirreno is an attractive Tuscan type melon that is high yielding and vigorous, ideal for organic gardens. The round, 2 3 pound, pale green, netted fruit have deep, dark green ribs that develop a yellow hue when theyre ready for picking. Inside, a thick layer of orange flesh is sweet, flavorful and aromatic. Great disease resistance and shelf life. HR: F 0 2. IR: PM 1 2, 5.