70 THE LANDSCAPE GARDENING BOOK 



young plants only should be transplanted ; the long tap root 



makes this precaution necessary. 

 2 Tsuga Canadensis: hemlock spruce or common hemlock; 



seventy-five feet high and over; any soil, not too dry; ranks 



next to the white pine and is quite as beautiful in its way ; 



easily transplanted. 

 3 Betula papyrifera: canoe or paper birch; sixty to eighty feet 



high; fairly rich soil, but may be very generally planted; 



very white bark, peeling readily from the tree; used by the 



Indians for their canoes. 



4 Populus nigra, Italica: Lombardy poplar; sixty to eighty feet 

 or more high; any soil ; pyramidal trees which are familiar to 

 everyone. 



5 Sorbus aucuparia: European mountain ash or rowan tree; 

 forty feet high, sometimes more; any soil; white flowers in 

 flat clusters ; blossoms in May and June ; brilliant red berries 

 follow, which remain all winter; the rowan tree of old folk- 

 lore. 



SHRUBS IN THE SCREEN GROUPS 



i Forsythia suspensa, Fortunei: weeping or pendulous golden 

 bells; eight feet high; any soil; yellow flowers the length of 

 the branches in early spring ; branches arch and dip to the 

 ground. 



2 Ligustrum Ibota, Regelianum: variety of privet; six feet high; 

 any soil ; low and spreading growth ; small lilac-like clusters 

 of white flowers; blossoms in June and July; black berries 

 follow. 



3 Hibiscus Syriacus, p&oniftora: rose of Sharon; twelve feet 

 high; any soil; solitary white flowers with red centers, 

 abundant; blossoms in August and September. 



