Seeds from Mahan Pecan or Florida Giant, Georgia Giant, Masterpiece, Mayhan, Mississippi Giant, Chestnut. I have these shade trees growing all over my yard as we have heavily fertilized this tree for the past three years. Produces large paper shell nuts that are up to 2 and a half inches long and very easy to crack. Mid to late season pollen shed, with early to mid season receptivity. Very prolific, with a strong tendency to overbear as a mature tree. Ripens late, about 12 days after Stuart. Hardy in zones 6 to 9. This 80 foot tree will produce the highly sought after nuts after about 4 years.