These Walls Were Constructed: These walls were constructed to keep back the northern barbarians (Picts and Scots), who continuously menaced Roman rule in Britain. Hadrian (r. 117-138), considering that the walls of Agricola were in¬sufficient for this purpose, erected during 122-128 the most famous of these walls. Usually called after him (see HADRIAN'S WALL), it marked the northernmost limits of Roman territory in Britain after that date. It is known also as the Wall of Severus, since Lucius Septimius Severus (r. 193-211) was the first emperor to restore it (200-205).
When choosing climbers for planting against houses or high walls, the direction that they will face must be considered since climbers on shaded walls will get little direct sunshine; those on some sunny walls may get too much; and those on walls with sun for part of the day may be exposed to cold winds. The problem hardly arises with fences, since plants quickly rise above them. The soil close to house walls can be dry, and until climbers become established they may need regular watering.See Also Walls And Hedges:Hedges make excellent garden barriers where walls and hedges and fences are undesirable. They provide a natural backdrop to other plants, and thorny hedges are effective obstacles against domestic and farm animals. Hedges can be either formal and close-clipped or informal and irregular in outline.
Some hedges need pruning to create attractive shapes, while others are pruned to promote regular flowering. Pruning deciduous hedges helps to produce a mass of shoots from their base; hedges with thin bases are always an eyesore. In areas where there is a risk of high snowfall, the top of the hedge should be sloped so that snow falls quickly and easily off the top.
On The Other Hand See Low Walls Usually:They are expensive to build but need essentially no upkeep. Walls are of especial value for supporting terraces and other places where soil must be retained. Such supporting walls may be built with cement or be dry walls made without cement.
Informal groups of trees and shrubs are good as "walls" where space permits. •
The same shade of blue has been used on the low walls usuallyer walls, beneath the dado rail, and on the door - an emulsion for walls, a tougher, eggshell paint for the woodwork. Above, there's a pale, airy blue, which makes the room feel light and spacious. A subtle leaf design has been stencilled on in green at random - an easy way to breath life into plain walls, with a pattern that's not as bold or rigidly repeated as wallpaper.
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