Despite having access to the original plans, there were problems of interpretation to overcome.
Some of Gertrude Jekyll's instructions to the gardeners were highly specific.

The Great Plat from the
East Rill in 1980

Bergenia schmidtii, 1975.
Of all the plants that needed identifying, it was the ubiquitous bergenias (or Megasea, as they were known to Jekyll) that gave the most trouble.

Rosa ‘Reine Olga' with kniphofia foliage and
flag iris, 1979.