100 MASSACHUSETTS HORTICULTURAL, SOCIETY. 



literally covered with masses of white bloom. In growth it has a 

 pendulous habit and is very graceful in form. 



Spircea Bumalda is another species of the same genus, which 

 has an upright form. This is also a free bloomer and is very 

 attractive. 



The AVeigelas are very beautiful shrubs which are not entirely 

 hardy at Ottawa, the new wood being usually killed back more 

 or less by the severe weather in winter. In most instances, 

 however, a sufficient quantity of the wood survives to give a 

 considerable amount of bloom. Siebold's Variegated Weigela 

 has proved one of the hardiest forms at the central farm. It 

 blooms abundantly in its season, and its variegated foliage makes 

 it at all times very attractive. 



The different species and varieties of Philadelphus (known 

 also as Syringa and Mock Orange) are charming objects for the 

 flower border, and quite hardy. The flowers vary in size from 

 one to two inches across ; some of them are single and some 

 double ; most of the varieties are richly perfumed. 



The Snowball, Viburnum opulus var. sterilis, is an old-fashioned, 

 but most desirable species for the shrubbery. During the bloom- 

 ing season it is literally covered with masses of snow-white 

 bloom. V. Icmtana and V. denfatnm are also very valuable 

 hardy ornamental shrubs. 



The Siberian Cornus, Cornus alba var. Slbirica, is another 

 very useful and hardy sort. It is a pretty shrub when covered 

 with its flat, white clusters of bloom in June ; and when devoid 

 of foliage during the winter, its brilliant red stems form a beauti- 

 ful contrast with the white background of snow. 



The Russian Olive, said to be a hardy form of Eloeagnus hor- 

 fensis var. angustifolia, is a small tree of very graceful habit, with 

 foliage and branches of a charming silvery hue, which is best 

 brought out where it has a background of dark green growth. 

 This is a very hardy tree and endures the severe climate of the 

 northwest plains well, and when in bloom its numerous small 

 yellow flowers fill the air with their fragance. 



Later in the season the Japanese Hydrangea, Hydrangea 

 paniculata var. grandiflora, becomes a very prominent object in 

 the collection of shrubs, from the large bunches of flowers so 

 freely produced at the ends of the branches. This species has 

 found its way into public favor very rapidly. Only twenty-three- 



