10 
BULLETIN 57, HAWAII EXPERIMENT STATION 
not grow over 8 feet high can be planted midway between the more 
permanent windbreaks to protect a field. The banana plant makes 
short, compact growth and is of additional value in producing fruit. 
Castor-bean trees afford protection in less time than any of the other 
trees now used for windbreaks. They protect a greater area than 
Fig. 4.— An old Monterey cypress windbreak. Note the low-branching and dense foliage; also 
the lack of top branches on the windward side. The fog shown in the center of the picture is 
characteristic of Waimea 
does the banana plant but less than the eucalyptus-cypress combina- 
tion, and like the banana are usually planted midway between the 
more permanent windbreaks at the edges of the field. Probably the 
best windbreak for the Waimea district is one consisting of a row of 
Fig. 5.— A castor-bean windbreak. Note the low, dense growth which makes the tree desirable for 
secondary windbreaks 
Monterey cypress planted close to the fence on the windward side of 
the field, to the lee of which are two or three rows of eucalyptus. The 
cypress should be planted 10 feet apart and the eucalyptus 10 feet 
apart. If further protection is necessary the windbreak across the 
middle of the field should consist of castor-bean trees or banana plants. 
