The newest Old World bluestem cultivar is ‘WW-B. Dahl.’ The correct species classification for “WW B. Dahl” Old World Bluestem is Bothriochloa bladhii.
Old World bluestems include several species of warm-season grasses that were introduced from Europe and Asia from 1920-1965. These grasses have been studied extensively in Oklahoma for the last 40 years.
Old World bluestems are warm-season bunch-grasses that possess good forage potential for the southern Great Plains. These grasses respond very well to fertilization, are drought and cold tolerant for the most part, withstand close grazing, and are palatable to livestock. Old World bluestems are not closely related to the native big and little bluestem grasses domestic to the USA.
B. Dahl Bluestem is very efficient with fertilization and is impressive in its ability to thrive in marginal and poor soils.