This is a H. 'Tardiana' type
hosta that was registered with the British Hosta and Hemerocallis Society (BHHS) in 1988
on behalf of hybridizer,
Eric Smith.
It forms a medium sized (17 inches high) mound of slightly
cupped, moderately corrugated foliage that has thick substance.
Dense clusters of white flowers bloom in late June into July.
The Hostapedia by Mark Zilis
(2009) states, "The flowers of 'Osprey'
are produced early in the growing season, making the contrast
with its blue-green foliage especially attractive."
Similar cultivars include H. 'Brother
Ronald'.