16 BULLETIN 974, U. S. DEPARTMENT OF AGRICULTURE. 
FIELD PLANTING. 
Plants from cuttings or rooted shoots are ready for permanent field 
planting when they are 1 or 2 years old and 6 to 18 inches high. 
(Pls. XTX and XX.) 
It is a curious fact that these plants send out no new roots in spring 
until they are in full leaf, when their flowering is nearly or quite 
finished and their principal twig growth has ceased. It is important, 
therefore, in taking up either a wild or a cultivated plant from the 
open ground that as much as possible of the old root mat be care- 
fully lifted with the plant, for upon these old roots the plants depend 
for moisture until their new rootlets are formed, about two months 
after the first signs of growth in spring. 
In the case of mature wild bushes with very large root systems, 
when it is practicable to secure but a fraction of the root mat, say a 
disk only 3 or 4 feet in diameter, it is the best procedure to cut all | 
the stems at the time of transplanting to stumps 1 to 2 inches high. 
The bush will then produce a new and symmetrical top of a size 
suited to the capacity of the roots. The wood that is removed may be 
used for cuttings if the plant is sufficiently valuable. 
The stems that make up a bush usually develop fibrous roots on 
their basal portions beneath the surface of the soil and above the 
root crown, at which the several stems unite. Such plants can be 
divided into several when taken up for transplanting. As many as 
30 plants, each cut to a stump and with its own small but sufficient 
portion of the root mat, have been obtained in this way from a large 
wild plant. By utilizing the various methods of propagation de- 
scribed in this bulletin, as many as 600 cuttings of roots, stems, and 
twigs have been made from a single very large wild bush. 
In resetting plants from which the tops have been removed, the 
stumps should be made to project about an inch above the surface 
of the ground. New shoots are formed in spring from such exposed 
stumps much earlier than from stumps covered with soil and not 
receiving the warmth of the sun’s direct rays. If the plant when 
reset 1s made to occupy a moderate depression in the ground, the 
old stump and the bases of the new stems can afterward be covered 
with soil, and a new root system will finally develop from the new 
wood. 
When blueberry plants are set out in early spring, before the buds 
have begun to push, they usually make excellent growth, and for all 
plants that are pruned to the stump early spring is the best season 
for transplanting. 
Conditions with unpruned plants, however, are different. Since 
blueberry plants make no new root growth until late spring, it often 
happens that a period of hot days intervenes between planting and | 
