AVENUE TREES. 63 



green Oak is the most suitable for a street avenue, as it 

 requires but little pruning, and that is easity done with 

 a long-handled averruncator. The Lime can be planted 

 with it or alone for such promenades. This tree is of 

 slender growth, and can be easily pruned by the same 

 means, and if at any time it gets too large it may be 

 cut back to any extent. 



The Elm is a very good tree for street avenue work, 

 and can be pruned to any extent. The Sycamore is a 

 handsome tree for this purpose, especially when in 

 flower and bearing the seed. It may be pruned to any 

 extent, and the branches shortened in when they get 

 beyond the desired limits. The Turkey Oak is a hand- 

 some tree, but unless it is pruned annually it will soon 

 make but a poor appearance in this situation. 



The Birch is also a very graceful tree, and the 

 Poplar (the upright Poplar) is a good avenue tree, 

 causing but little trouble and living to a great age. It 

 should be planted rather closer than most other forest 

 trees. No pruning is required for it. 



The Plane-tree is a fine-foliaged deciduous kind, 

 suitable for the street, but it is better adapted for road 

 avenues, where it may be allowed a rather freer scope 

 to develop itself than ordinary streets will admit of. 

 It requires the same kind of pruning as the Lime, and 

 may be made a beautiful summer ornament if not 

 pruned in too close. 



When any of these trees, except the last named, are 

 planted for street avenues, pruning should be com- 

 menced as soon as they begin to grow freely, cutting-in 

 the ends of the branches so as to induce a compact and 

 symmetrical growth ; and as soon as they have attained 

 to their utmost limits they should be annually pruned 

 in with the averruncator. It may be done in the 

 autumn for deciduous kinds, but in the spring for the 

 evergreen kinds. 



The Renovation of avenue trees consists in cutting- 

 back severely such as will bear it, and the complete de- 

 capitation of some. I am sometimes sorry to see old- 

 established healthy trees completely extirpated when 



