It is of dwarf and neat growth, and well suited for planting on the rock garden.
In this glen is the rock garden, or rather the main part of it.
But whereas a rock garden is of all things irregular, a wall garden has regularity.
Do not attempt slavishly to copy the rock garden of some one else.
So many plants are suitable for a rock garden that the range of choice is bewildering.
So long as the rock garden exists there will always be planting.
If the rock garden leads to a bit of wood, either directly or through a wild garden, there will be all the more to rejoice over.
But for the most part America has confined its rock garden vision principally to the so-called "rockery."
A rock garden, above all else, is not artificial; at least, so far as appearance goes.
It is no more a rock garden than a line of cedars planted in an exact circle would be a wood.