A dictionary of modern gardening - University Library

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RH E 601 RH
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R. pulchra, Khich is a biennial. Divi- cies, and many varieties. Hardy and
sion. Common soil. half-hardy evergreen shrubs, except R.
R H E E D I A javanica. Stove ever- rhodora, which is deciduous and hardy,
green tree. Ripe cuttings. Pe^t, loa.m, R. ponticitm, Common Rhododendron,
and sand. R. maximum ; R. Caucasicum ; R. cam-
R HEM AN E.I A ckinensis. IWrdy panulatum ; and R. Catawbiensis, are
shrub. Cuttings and layers. Rich light the best hardy species. It is to be reloam,
RHEUM. Rhubarb. Fifteen species.
Hardy fusiform-rooted perennials.
Division or seed. Rich loamy
soil. See Rhubarb.
RHEXIA. Four species. Hardy herbgretted
that such a noble evergreen
shrub as R. maxiinum should be so sel-
dom seen in our grounds. Here in the
United States, where it is indigenous,
it is really less known than in England,
where it forms one of the main features
aceous perennials. Division. Peat soil,
R HINOPETALUM karelini.
of the undergrowth in lawns and plea^
sure grounds,—when will Americans
Hardy tuberous-rooted perennial. Offsets.
Light rich soil.
RHIPODENDRON plicatile, and its
learn to estimate as they deserve, their
own natural products! From the above
named species have been obtained the
variety. Green-house evergreen shrubs,
Suckers or leaves slightly planted.
following superior
Varieties.— R. Russellianum, scarlet
Sandy loam and peat.
RHODANTHE min^lfsii. fireen-
R. Lowei,
pale rose:
pale straw; R. tigrinum,
R. nobleanum, dark red ;
house annual. Dr. Lindiey recommends R. splendidum, (Cunningham's,) white ;
that " its seeds should be sown at two R. altaclerence, scarlet; R. multimacu-
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seasons: the first about the beginning latum, pale rose, spotted ; R. arboreum
of September; the second about the roseum, bright rose ; R.Victoria, deep
end of February. The soil the seeds red; R. venustum, pink ; R. augustum,
are sown in should be rather strong, pale flesh spotted ; 11. pulcherrimum,
but not rich, for the first sowing, con- scarlet ; R. grandiflorum, (Cunningsisting
of a mixture of sandy loam and ham'Sjl pale flesh; R. macranthum,
leaf-mould. They should be sown in rose; R. Knightii, scarlet ; and R. Carpots
and placed in a cold pit or frame, narvonianum, bright rose,
if sown in the autumn, which should be Hybrids with Azalea.— R. Adonsonii
kept close until the plants are up. The
young plants should be potted otf when
R.
R.
Azaleoides;
fragrans; R.
R. azaleoides album ;
luteum; and R. Gowemall,
for if allowed to get large before erianum.
potting, they never do any good put a Green-house Species and Varieties.—
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R. anthopogon, purple ; R. arboreum
' single plant into a small sixty-pot, they
must then be returned to the pit or cinnamomeum, reddish purple ; R. lap-
frame, and keptclose until they recover ponicum, crimson; R. setosuni, purple,
Characteristics of Excellence. — Mr.
i the effects of the shift ; afterwards harden
by admitting air. Then when there
is danger of frost, remove them to an
Glenny gives the following good crite-
ria :— " The flower large, circular, and
airy part of the green-house
winter, taking care that they
for
are
the
not
campanulated, or hollow like a globular
cup. The five divisions of the petals
over watered ; for much depends on should be concealed by means of the
the manner in which they are treated
during the winter, as too much or too
lapping over. The petal thick, smooth-
edged, and stiff. The truss, pyramidal
little water will destroy the healthiest or dome-shaped, standing clear of the
plants in a short time. In the spring, foliage; the flower compact, touching,
February, repot them into a richer but but not crowding each other; footstalks
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light sandy soil, and place them in a stifle and elastic. The colour brilliant,
warmer and moister situation, and pinch the spots distinct and contrasted, and
off'all the first flowers as they appear. stand well without fading. The plant
" The spring-sown plants may be should be bushy, the foliage bright,
treated like other half-hardy annuals, clear, green, large, and disposed ail
only they must have plenty of air to round the branch, especially round the
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keep them from being drawn up weak- flower ; the stems should be well cover-
Card. Chron. ed with leaves, and the bloom should
]y,"
RHODODENDRON. Twentv-six spe- be abundant. It should not bloom
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