Yucca
YUCCA FILAMENTOSA.--Silk Grass. North America, 1675. A well-known and
beautiful plant, with numerous leaves arranged in a dense rosette, and
from 1 foot to 2 feet long by 2 inches broad. Flower scape rising to 5
feet or 6 feet in height, and bearing numerous flowers that are each
about 2 inches deep. There is a beautiful variegated form of this
species named Y. filamentosa variegata, and one with much narrower
leaves t
an the typical species, and known as Y. filamentosa
angustifolia.
Y. GLORIOSA.--The Mound Lily. United States, 1596. This is another
well-known hardy species, with long, sharp-pointed leaves, and a
handsome, much branched scape, of flowers that are each about 2 inches
deep. There are several varieties, differing in colour of foliage,
including Y. gloriosa glaucescens, with decidedly glaucous foliage; Y.
gloriosa superba, with rigid leaves and a shorter and denser flower
scape; and another with variegated leaves. Y. gloriosa recurvifolia is
usually dwarfer in the stem than the type, and more inclined to branch
than the other species, and less rigid, with recurving leaves that are
not so sharp-pointed, The flower panicle is large and very much
branched.
The Yuccas all do well if planted in light loam of good quality.