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east and across the walk from this is a collection of the 
garden phlox, of which there are many kinds offered for 
sale and new ones constantly appearing. These are en- 
tirely hardy, and may remain out-of-doors continuously. 
Along the south walk, on both sides, are beds containing 
a large collection of gladioli, representing numerous ex- 
amples of the various types of this popular flower and 
many horticultural varieties. To the south of this is the 
Victory Grove, planted with Douglas spruce (Pseudotsuga 
mucronata). 
In the low land on the east side is a large collection of 
mallows made up largely of hybrids produced here at the 
Garden during a series of experiments. Many of these 
are desirable for the garden, as the mallows, while naturally 
natives of moist or wet situations, will thrive under or- 
dinary garden conditions. 
Many other collections are planned for this area, includ- 
ing an iris garden, and will be developed from time to time 
as opportunity offers. 
17. Dahlia Collection 
This is located in that part of the west border extending 
from the Harlem Station plaza north to the Mosholu 
Parkway bridge, a distance of over 400 feet. One of the 
finest collections is exhibited here each summer, the blooms 
beginning to appear about the end of July and continuing 
in an unbroken succession until the time of killing frosts. 
The various types of the cultivated dahlias are exhibited 
in many examples, each plant being plainly labeled with 
the name of the type, the name of the variety, and the 
name of the donor. This is one of the most popular 
collections in the Garden. 
The dahlia is a native of the highlands of Mexico, very 
few kinds being known in the wild state. The great diver- 
sity of form and color exhibited by the cultivated dahlia 
has been produced artificially by hybridization and selec- 
tion. Not a hardy plant, it is necessary to remove the 
