Northern Catalpa Rhubarb but is not typically grown

but is not typically grown as a cooking apple

Green ash can also tolerate soil compaction

Heat-treated blades stay to sharp longer

Harvest Time: Early to mid-September

Northern Catalpa Rhubarb but is not typically grownHardiness: Zone 4. Size: Tree which can reach 40 60ft in size. Planting: Adaptable to most soils but prefers loam or clay loam Fruit: None Pot: 1 gal, 1 2ft tree Northern Catalpa is native to the midwestern US where it was cultivated starting in the 1750s due to its resistance to rotting. This made it useful as fence posts and, rather unsuccessfully, as railroad ties. This tree has since expanded far beyond its original range as a commonly planted