Passing the high and rugged Blue Ridge, which is infertile except in the intervening valleys of its S.W.
On the infertile Bagshot Beds the large area of the New Forest remains untilled under its ancient oaks.
The removal of weakly, sickly, overcrowded and gross infertile shoots is usually, however, a matter about which there can be few mistakes when once the habit of growth and the form and arrangement of the buds are known.
The sand-hills are not inherently infertile; the soil never bakes, is always receptive of moisture, absorbing water like a sponge and holding it well.
Farther south this axial range, which includes the Diamond Mountain group, falls away towards the sea in treeless spurs and small and often infertile levels.