250 GARDEN PLANNING 



parts are exposed to the weather, the mate- 

 rials and construction should be such as will 

 ensure a fair amount of durability. Trellis, 

 though often used as an element in the struc- 

 ture, is unsuitable, because it requires to be 

 painted to make it durable, and paint is incon- 

 sistent with a good effect in an arbour, which 

 of all garden structures is the one in which we 

 may nearest approach the so-called "rustic" 

 treatment. 



The Pergola — This charming accessory comes 

 to us from Italy. It is the best device for 

 growing a collection of flowering climbers, and 

 displaying their beauty, as well as for making 

 use of their shade. We may regard the per- 

 gola as an extended arbour. Its proper place 

 is spanning a straight walk. 



In its simplest form it is a skeleton structure 

 of timber. The uprights may be placed from 

 four to six feet apart, and should be in pairs. 

 Oak is the best material, but red cedar or locust 

 may take its place if the cost of oak is prohib- 

 itive. The cross-pieces should be secured with 

 stout spikes, and the series of arches thus 

 made should then be tied together with longi- 

 tudinal timbers, over which other and lighter 



