THE RHODODENDRON WALK, KEW GARDENS.
The Rhododendron Walk, parallel with the Thames, and situated near the north-west corner of the Arboretum, is one of the chief sights at Kew. The variety of colour here displayed - seen at its best, perhaps, in June - is, to those only acquainted with the somewhat stunted shrubs common in private gardens, a revelation of unexpected beauty. In its way, the Rhododendron Walk is as famous as are the avenues of horse-chestnuts in Bushy Park, though it has not attained the dignity of being identified with any particular Sunday. The Arboretum used to be separated from the Botanic Gardens proper by a wire fence; and until a few years ago, to the unscientific male visitor, the chief distinction lay in the fact that in the former smoking was permitted, whereas in the Gardens it was prohibited.
source: The Queen's London : a Pictorial and Descriptive Record of the Streets, Buildings, Parks and Scenery of the Great Metropolis, 1896