even carry thru until harvest, but such poorly pollinated 
fruits are usually imperfect. In most cases, a fruit tree 
is benefited by cross-pollination with another compat- 
ible sort of the same family. 
To guide the grower whose plantings must be 
limited, we have indicated by symbols, certain varieties 
best suited to your needs. 
PEARS—Nearly all pear varieties require cross-pollina- 
tion with the exception of a few species. All pear 
varieties bear excellent pollen and have proven 
effective pollinizers for each other. However, the 
Bartlett and Seckel varieties are inter-sterile and 
should never be planted together, unless a third 
variety is considered. 
PLUMS—vary in their needs for cross-pollination ac- 
cording to specie and variety. Our plum varieties 
represent two distinct types; namely, the European 
and Japanese. Nearly all plum varieties require 
cross-pollination to fruit. These two species do not 
inter-cross freely. Hence, it is necessary to plant at 
least two European or two Japanese sorts together 
to insure a crop of fruit. Each sort is indicated by 
4 
an “E” or “J” to help you distinguish the European 
or Japanese species. 
PEACH Varieties are all considered self-fruitful 
APRICOT planted alone. The most important ex- 
NECTARINE are the J. H. Hale Peach and the 
Riland Apricot which do not fruit satisfactorily 
unless planted with another sort of the same family. 
The Nectarine is not a Hybrid fruit. That is, the 
result of crossing a peach with another fruit. The 
tree of the Nectarine to all appearance resembles the 
Peach tree. In growth, habit, and soils required, it 
is similar to the peach family. The fruit differs from 
the peach in that the skin is smooth, and the rich, 
aromatic flesh has a flavor all its own. The Nectarine 
is an exceedingly delicious dessert fruit. 
QUINCE—varieties appear to be sufficiently self-fruit- 
ful planted alone. 
NUTS—tThe Filbert or Hazel Nut are self-sterile. Plant 
two different varieties for cross-pollination. They 
are quite hardy and fruit profusely when very young. 
CHERRY—AlImost all of the sweet cherries are unself- 
fruitful, even tho they produce excellent pollen. 
It is evident any two varieties will cross-pollinate 
each other satisfactorily, with the exception of 
Napoleon, Bing and Lambert which will not pollin- 
ate each other and should be planted with another 
variety to insure fruit. 
All sour cherries are self-fertile and will bear fruit 
planted alone. 
The Duke or Semi-Sweet cherries are self-sterile and 
require cross-pollination. 
NOTE—Any sweet, sour or Duke cherry variety will cross- 
pollinate each other. Plant Early bloomers with sweet varieites 
and the late bloomers with sour varieties. The Black Tartarian 
is recommended as the best sort to meet all requirements. 
[8] 
