250 green-house — repotting. [March. 
much amalgamated that the named sorts will not be distin- 
guished. A green-house without some of the choice varieties 
of this plant is deficient of a flower whose beauty and gran- 
deur are beyond the highest imagination. It is a native of 
Nepaul, in India, and when found by Dr. Wallach, awakened 
the ambition of every cultivator and connoisseur in Europe.* 
There are several other species lately brought from that 
country, which are highly valued : the species are R. cam- 
panulatum, R. anthopogon, and R. cinnamomum. They are 
rarely seen in our collections, but a few years will make them 
more plentiful. Their beauty of flower is beyond description. 
The pots should be well drained, and if they are large, put 
several pieces of sandy stone or potshreds around the side, 
for the fine fibres delight to twine about such, being moun- 
tainous plants. When growing, give copious waterings at 
the root. For young plants, soil No. G. And for blooming- 
plants, use one portion of leaf mould. 
Roellas, pretty leafy shrubs, with blue terminal funnel- 
shaped flowers, lip-spreading j R. ciliata, R. spicata, and R. 
pcdunculata are the finest of the genus. The pots must be 
well drained, and care taken that they are not over-watered. 
(Soil No. 6.) 
Salvia (Sage) is an extensive genus of soft-wooded, shrub- 
by, or herbaceous plants ; very few of them do well in the 
green-house, and many of them are very trifling, having no 
other attraction than the flower ; and those of the tender 
species, when compared with S. fidgens, crimson, S. splen- 
dens, scarlet, S. angustifolia, pale blue, S.pmtens, dark blue, 
S. involucrata, pink (which in artificial climates constitute 
the standard of the genus), are not worth cultivation. The 
best method to adopt with the summer flowering kinds is to 
plant them in the garden in May : they will grow strong and 
flower abundantly, and in the fall they can be lifted, and 
preserved during winter in pots. They neither grow nor 
flower so well as when planted out, and even a slip planted 
in the ground in moist weather will root in a few days, grow, 
and flower in a few weeks. S. splendens is the best to select 
for the purpose. All will grow easily with encouragement. 
(Soil No. 12.) 
* Mr. Hogg, the eminent horticulturist of New York, raised the 
first plant of arboreum from seed in England. 
