One of the most productive Mayhaw varieties, One Green World Cat. No. 3972. Fruit round ~13 mm diam; attractive red skin, white flesh, twiggy growth habit, heavy bearer, rust susceptible. Selection from the wild by T.O. Warren, Hattiesburg MS.
Heavy was teken from the Pearl River swamps of Mississippi in the late 1960's by T.O.Warren. This is the heaviest bearing clone I have ever seen. The tops bend with loads of fruit, ranging in size from less that 1/2 inch to 3/4 inch. It is a Crataegus aestivalis clone and may have a little mixed blood in its parentage. Heavy is prone to rust, but even with this leaning and fault it has always been one of my most consistent bearers. It is the last to ripen with sound fruit, even during the bad, rainy years. It comes through for me. For example, a six year old tree produced 6 gallons of fruit. The next year, at seven years of age, it bore 12 gallons. -- T.O. Warren, 1990, History of Mayhaw Varieties, Pomona 23(3):69-71.