FAST-GROWING TYPES FOR SCREEN EFFECTS 177 



which are more or less permanent in their character of growth. The 

 types contained in this last group establish themselves much more 

 quickly than trees and shrubs of a similar kind, which require a longer 

 period after transplanting before making a normal growth. 



Such shrubs as the weigela, the ninebark, and the privet are often 

 used to obtain quick mass effects of foliage around the base of buildings 

 in locations where the slower-growing types of shrubs, such as lilacs, 

 bridal wreaths, and snowballs would require a much longer time to 

 develop a similar effect. 



LIST OF FAST-GROWING TYPES VALUABLE FOR PRODUC- 

 ING SCREEN EFFECTS 



These groups contain the very fastest growing and most temporary 

 types of trees and shrubs, and the more rapid-growing types of trees 

 and shrubs often used in permanent plantings. Material may be 

 selected from these groups when an immediate foliage effect is desired. 



A. Trees: 



Acer negundo 

 Box Elder 



Acer saccharinum 



Silver Maple 

 Ailanthus glandulosa 



Tree of Heaven 

 Catalpa speciosa 



Western Catalpa 

 Larix europea 



European Larch 

 Madura pomifera 



Osage Orange 

 Morus alba tatarica 



Mulberry 



B. Shrubs: 



Cornus alba sibirica 



Siberian Dogwood 

 Cornus stolonifera 



Red Osier Cornel 

 Deutzia crenata Pride of Rochester 



Large-flowered Deutzia 

 Diervilla florida 



Rose-coloured Weigela 



Phellodendron amurense 

 Chinese Cork Tree 



Picea excelsa 

 Norway Spruce 



Pinus sylvestris 

 Scotch Pine 



Platarms orientalis 



Oriehtal Plane 

 Populus (in variety) 



Poplar 

 Robinia pseudacacia 



Black Locust 

 Salix (in variety) 



Willow 



Ligustrum amurense 



Amoor River Privet 

 Lonicera (in variety) 



Bush Honeysuckle 

 Philadelphus grandiflorus 



Large-flowered Mock Orange 

 Physocarpus opulifolius 



Ninebark 



Sambucus canadensis 

 American Elder 



