This grower is sure of this plant identification.
From Crocus nursery stock
Hemerocallis ‘Stafford’ (Day lily). A vigorous, clump-forming perennial with star-shaped, bright red flowers which have yellow throats, lasting for only one day, in mid summer to late summer. Has strap-shaped, light green leaves.
Italics = data drawn from parent genus or speciesView Full Plant Finder Record