PLANTING 1M.AN FOB A DEMONSTRATION AREA. 



21 



plums and cherry is to>secure thickets of sprouts that will screen the 

 undesirable view of the back lots, and also act as windbreaks. Addi- 

 tional shade trees will be planted on the lawn and along the drives 

 where the former planting has failed. 'Flic species to be used for this 



purpose arc white elm, hackberry, sugar maple, and Norway maple. 



The rows of -hade tree- along the drives and fences, where the 

 planting ha- failed, should he replaced at once with white elm. hack- 

 berry, sugar maple, and Norway maple. These species are very hardy 

 and well adapted to such exposed situations. 



J i I L 



6 A i hi Arboretum ana-"' Nursery 



Fences 

 II™ STREET 



~1 



Fig. 3. — Planting plan for a demonstration area in the Lowlands Belt. 



r 



The arboretum that is also planned may contain the remnants of 

 the nursery stock and any introduced tree- or shrubs that are deemed 

 worthy of trial. Many shrubs serve a useful purpose in forestry by 

 shading the ground and keeping- out grasses where the canopy of the 

 main forest stand is open. The native shrubs invariably act as the 

 advance guard of the forest in its encroachment upon the prairie. 

 The following trees and shrubs were recommended for planting in 



