Rhododendron keiskei
Sciadopitys verticillata Taxodiaceae Umbrella Pine
The five-inch needles of this slow-growing Japanese evergreen spread out from new tip growth like the ribs of a half-open umbrella, giving it an airy distinction. The tree, a squat pyramid, with short branches and a stubby main trunk, is ideal for bonsai cultivation.
CARE. Grows well in most any soil but does better in one that has been enriched. As it is slow-growing, there is slight danger that it will outgrow its dwarf proportions. Transplant only when young and do not expose the roots. Protect from severe winter conditions.
PROPAGATION. Seeds.
SPECIAL USES. Bonsai, rock gardens, specimens.
Spiraea Rosaceae Spirea
This popular deciduous shrub varies as to size, with most varieties far out of the miniature classification. However, there are some short ones, with S. bullata (crispifolia) an out-and-out midget of twelve to fifteen inches. It has rose-colored flowers in midsummer. S. arguta (compacta) is slightly taller. In May it has garlands of fragrant white flowers. S. bumalda, with deep-pink flowers in early summer, grows to about two and a half feet. Most others are considerably taller.
CARE. Almost any soil is acceptable providing it is not too heavy and has drainage. However, plenty of moisture is essential. Plenty of sun is necessary for good flowering. Pruning also promotes flowers, but do it after the blooms have fallen. Transplanting is easy, even with bare roots. Fertilize occasionally.
PROPAGATION. Seeds (ripe or stratified), cuttings of green or hard wood, layers.