CHE REFERENCE LIBRARY - Pole Shift Survival Information

322 THE NURSERY-MANUAL
Gourds (&~curbif~ l’tyo, Lagcnaria, a.nd others). @~urbitaccl~~~
Increased by suds, after the weather is settled and ground is
warm, usually planted directly where the plants are to grow.
Grammatophyllum. ~~rchidnctm.
Propagated from pieces of the pseudobulbs. See OrchkZs, page 372.
Grape (Vit is, several species ; I’. vir$tm is the wine grape and
the source of the European varieties ; I’. Labzwca is the
dominant source of the American varieties). Vitacc~.
Grape seedlings at-c’ easily grown. If the ground is fit and there
is no danger from vt>rmin, the seeds may be sown in autumn, but
they are usually stratified and sown in spring. They come readily
if sown outdoors, bur some prefer to force them under glass with a
mild bottom heat. Seedlings do not “ come true,” and they are
therefore grown only- for the purpose of obt,aining new sorts.
The grape is readily multiplied by layers, either of the ripe or
green wbod. The ripe wood or canes may be layered either in falI
cir spring, but spring is usually preferred. The cane is covered
2 or 3 inches dcq, and nearly every bud will produce a plant. In
August or Septembt~r the la?:er should be lifted and cut into plants.
Better plants are obtained if only the strongest canes are used and
only a part of the buds on each allowed to grow. The cane is
usually cut back to four or five buds, or if very strong plants are
desired only one 1~~1 is left on each la>yer. Canes of the previous
year, those rcccntly matured, are preferred, although wood two or
three years old ma>- 1~ used, but in this case it is usually necessary
to cut or otherwise wound the joint to induce the formation of
root,s. Vinrbs or stools grown for the production of layers should be
cut back severely in fall or winter, to induce a vigorous growth of
canes the following season. These canes are then layered the
succeeding fall or spring. Only a part of the canes are layered
from any stool, some of them being allowed to grow for cutting
back the nest autumn in order to get another crop of canes. In
some varieties which do not strike readily from cuttings, layering
is considerabl), practiced by nurserymen. The Delaware is often
grown in thi wag’.
Extra strong layers can be secured by layering in pots. A large
pot, filled with rich soil, is plunged beneath the layer. In this
way a layer may be rooted and separated even while carrying
fruit. Layering in pots is prac Aced only in special cases.