The oak requires shelter in the early stages of growth; in England the Scotch pine is thought best for this purpose, though Norway spruce answers as well on suitable ground, and larch and other trees are sometimes substituted.
The most important of the firs, in an economic sense, is the Norway spruce (Picea excelsa), so well known in British plantations, though rarely attaining there the gigantic height and grandeur of form it often displays in its native woods.
The boughs and their side-branches, as they increase in length, have a tendency to droop, the lower tier, even in large trees, often sweeping the ground - a habit that, with the jagged sprays, and broad, shadowy, wave-like foliage-masses, gives a peculiarly graceful and picturesque aspect to the Norway spruce.
In the most prevalent variety of the Norway spruce the wood is white, apt to be very knotty when the tree has grown in an open place, but, as produced in the close northern forests, often of fine and even grain.
By the peasantry of its native countries the Norway spruce is applied to innumerable purposes of daily life.