The background consists of artificial rockwork, supported on huge wooden scaffoldings.
- Neat trailing plants adapted for rockwork, thriving in sandy soil.
Others suitable for front lines or rockwork are A.
Showy rockwork or front row border plants of easy culture in any light soil; the plants should be frequently renewed from cuttings.
Dwarf close-growing evergreen cruciferous plants, adapted for rockwork and the front part of the flower border, and of the easiest culture.
- Showy dwarf plants for sunny rockwork, in light sandy soil.
Showy free-flowering plants, for rockwork, banks, or stony soil.
Glacialis are good examples; while for borders or larger rockwork D.
Good rockwork cruciferous plants.
Alpinus is a beautiful little alpine for rockwork, 3 to 6 in., of tufted habit, with small-toothed leaves, and heads of pinkish-purple or, in a variety, white flowers, early in summer.
Characias, 2 to 3 ft., with green bracts, are fine plants for rockwork or sheltered corners.
Dwarf subshrubby plants well suited for rockwork, and called Sun-Roses from their blossoms resembling small wild roses and their thriving best in sunny spots.
3 to 6 in., with bluish-violet flowers having a brilliant orange spot, is suitable for rockwork; L.
Well adapted for rockwork or banks of sandy soil.
Rivularis, 4 in., from La Plata, has slender, creeping, rooting stems, bearing stalked ovate leaves, and large funnel-shaped white flowers, with a remarkably long slender tube; especially adapted for rockwork, requiring moist sandy loam.
It is of evergreen habit, and requires a warm position on the rockwork and well-drained sandy soil; or a duplicate should be sheltered during winter in a cold, dry frame.
Pyrenaica, 3 to 6 in., is a pretty dwarf plant, requiring a warm position on the rockwork and a moist, peaty soil more or less gritty; it has rosettes of ovate spreading root-leaves, and large purple, yellow-centred, rotate flowers, solitary, or two to three together, on naked stalks.
Neat-growing, succulent plants, forming rosettes of fleshy leaves close to the ground, and rapidly increasing by runner-like offsets; they are well adapted for rockwork, and do best in sandy soil.
Quadridentata, 4 in., white, are beautiful tufted plants for rockwork or the front parts of borders; S.