158 SCHOOL AND HOME GARDENS 
season trim again in the same way, although the hedge 
may be allowed to grow to a height of three feet if 
desired. 
Always trim the hedge so that the top will have 
a rounded curve. A round-topped hedge has a neater 
appearance and will shed snow and ice more easily 
than one with a flat top. 
THE JAPANESE QUINCE 
TheJapanese quince (Cydonia japonica) produces bright 
scarlet flowers in early spring. It is suitable for hedges, 
for borders, or for planting singly on the lawn. Cydonia 
japonica var. alba is a form producing showy white 
flowers. It grows to a height of five or six feet. 
Pests. For San José scale, spray with lime-sulfur 
solution in the autumn or before the buds open in 
the spring. 
THE SNOWBALL 
The snowball (Vib), with its flowers growing 
in large white ball-shaped clusters, is of special value as 
an individual shrub on the lawn. Viburnion plicatum 
(the Japanese snowball) is one of the most desirable 
members of this family, being of moderate growth and 
compact halit. The foliage is a rich green, and the 
flowers, which appear in May, are larger than the com- 
mon snowballs. Its leaves, as well as the flowers. are of 
unusual beauty. It may be grown in masses or as a 
