Letter Re: Tree Planting Hardiness Zones Map for the US
Sir: I guess this has been out for a year but it’s new to me that the Arbor Day Foundation has come out with a new Hardiness Zone map. I live in northern Ohio so I moved from a 5 to a 6 zone. Global warming? This makes a big difference in the fruit trees I can plant. Some areas have moved up two zones! In the past I was considering putting in a few acres of Paulownia trees for future timber but the nursery recommended only Zones 6 and above for timber production. This is a big deal for …