TREES AND SHRUBS FOR FLOWERING EFFECTS 153 



possible, the summer-flowering types of trees and shrubs. For this 

 reason, various groups have been outlined to embrace trees and shrubs 

 producing flowers in the early spring before the leaves appear, and 

 producing flowers in the early spring after the leaves appear, such as 

 the spirea and the lilac; producing flowers during the summer months, 

 such as the weigela and the mock orange; and producing flowers 

 during the late summer and autumn months, such as the rose of Sharon 

 and the hydrangea. It is therefore important in connection with our 

 various plantations of trees and shrubs to consider specifically the 

 period during the blooming season, when the maximum effect of flowers 

 is desired. 



The second important consideration, in designing plantings of trees 

 and shrubs, is the colour of the flowers. Flowering trees and shrubs, 

 with respect to the colour of their flowers, may be divided into four 

 definite groups: those which produce flowers in the shades of red and 

 pink, such as pink-flowering dogwood, flowering peach, and the 

 flowering crab; those which produce yellow flowers, such as the Scotch 

 broom, yellow jasmine, and the golden bell; those which produce white 

 flowers, such as the white fringe, hawthorn, hydrangea, and elders; 

 and those which produce blue flowers (the smallest list of all), such as 

 the blue spirea, blue rose of Sharon, and blue lilacs. Each of these 

 groups may be divided, as shown by the tabulations, into early- 

 flowering and late summer-flowering sorts. The entire discussion 

 concerning the colour of the flowers in the average planting is more 

 theoretical than practical; but in the other plantations, where there 

 is sufficient space to obtain masses of flowering effects during the 

 blooming period, considerable study should be given to the colour of 

 the flowers. 



The small home owner in general is much more interested in his 

 ability to procure trees and shrubs which will give him a continuous 

 succession of bloom. This also is not always practical; but there is a 

 group of standard shrubs, the use of which will provide as continuous 

 bloom as can be obtained through the combination of any group of 

 shrubs. It must be remembered that some varieties of shrubs will 

 flower at a slightly later period than other varieties, and for this 

 reason it is quite possible to obtain what seems to be a continuous 

 series of bloom. The most prolific blooming shrubs, however, seem 

 to flower during the months of May and June. During the latter 

 part of July we have but a few shrubs, such as the hydrangea, the 



