Posted by
AntMan01 (Massachusetts - Zone 5a) on Jan 28, 2018 7:34 PM concerning plant:
The name is incorrect. Both 'Sulphureum' and 'Neosulphureum' are cultivars of Epimedium x versicolor, these are not straight E. grandiflorum selections or cultivars.
Epimedium x versicolor are sterile hybrids between E. grandiflorum crossed with E. pinnatum ssp. colchicum.
