Drug Plants Under CultivationStockberger, W. W. (Warner Webster)
Science
Drug Plants Under Cultivation
Stockberger, W. W. (Warner Webster)
Botany, Medical; Medicinal plants -- Culture -- United States
Balm grows readily on any good garden soil and is easily propagated
from seeds, cuttings, or by division. The seeds may be sown in the open
early in the spring, but owing to their small size it is best to sow
them in shallow flats in a greenhouse or in a hotbed. The soil should
be well fined and the seeds sown thinly on the surface of the soil,
which is then firmed with a float or a small board. When well up, the
seedlings should be transferred to deeper flats, and when 4 or 5 inches
high they may be transplanted to the open and set about a foot apart in
rows spaced to suit the cultivation to be given. Cultivation should be
frequent and sufficient to keep the soil about the plants mellow and
free from weeds.
When the plants are in full flower the crop can be cut with a scythe,
or with a mower if the herb is to be used for distillation. For
preparing the crude drug only the flowering tops are collected, the
coarse, stemmy portions of the herb being rejected. The leaves and tops
are dried in the shade in order to preserve the green color.
Yields at the rate of about 1,800 pounds of dry herb per acre have been
obtained, but if only the flowering tops are collected the yield will
be very materially less. The prewar price paid to collectors for the
leaves and tops ranged from 3 to 4 cents a pound. In June, 1920, the
price for the leaves was 15 cents a pound.
ORRIS.
Orris (_Iris florentina_) is a perennial, native to southern Europe,
and is cultivated chiefly in Italy for its fragrant rootstocks, which
yield the orris of commerce. The plant grows well in a variety of
soils and flourishes in a rich, moist loam, but roots which are grown
in rather dry, gravelly soil appear to be the most fragrant. Orris
is readily propagated by division of the old plants, which may be
set either in the spring or fall about a foot apart in rows spaced
conveniently for cultivation.
Since harvesting usually takes place only once in three years, the use
of the land is required for that length of time in order to obtain one
crop. After the roots are dug they are peeled and dried in the open
air. The desired fragrance does not develop until after the dry roots
have been stored for a number of months, during which time they are
especially liable to the attacks of insects.
The yield is from 5 to 6 tons of dry root per acre. The average annual
importation of orris is normally about 500,000 pounds. The wholesale
prices, which before the war ranged from 6 to 10 cents, in June,
1920, were 14 to 15 cents a pound. The outlook for a profitable orris
industry in this country does not appear promising, and it does not
seem advisable for any considerable number of persons to undertake the
growing of this crop.
PARSLEY.
Public-domain text, read in full here on John Shaqi.
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