Northern Catalpa Rhubarb often with striping

often with striping

Prefer wet/moist areas with shade from larger larger trees

Heat-treated blades stay to sharp longer

If you want to source your own spices locally

Northern Catalpa Rhubarb often with stripingHardiness: 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