Fleeta Brownell Woodroffe registered this seedling of H. 'Tokudama' in 1972. It grows to a
medium size (15 inches high by 36 inches wide) of blue-green
foliage. The leaves are heavily corrugated, moderately cupped
with thin underside bloom. It bears near white flowers.
An article by Warren I. Pollock in
Hosta Journal (1985 Vol. 16) states that, "In a November
11, 1976 letter, Smith stated that 'Blue Lagoon' is his provisional name for
the H. x tardiana numbered TF2x4. In
1977, however, the name
'Dorset Blue' was officially registered this hosta on behalf of Eric
Paul Aden. .."
recommended in the 1991 book
The Genus Hosta
by W. George Schmid
and accepted by The American Hosta Society would update names as follows: H. x
tardiana is now the Tardiana Group.