124 
Greenhouse and Stove Plunts. 
CORREA. 
they should each spring require pots 2 or 3 
inches larger until they get into such as 
are 18 or 20 inches in diameter ; never in 
potting attempt to disturb the roots further 
than taking away the drainage crocks. 
As they get large weak manure-water in 
the growing season will assist them. The 
plant will sometimes keep in a healthy 
condition for eight or ten years, but, it 
oftener goes off at the roots before this age 
is reached, which keeps it scarce. 
Insects.—This Cordyline is not usually 
much affected with insects, but red spider 
and thrips sometimes attack the leaves, 
getting on the undersides ; these must be 
sought for and at once removed by spong- 
ing. 
CORONILLA. 
The greater number of these plants are 
hardy, but a few require greenhouse treat- 
ment, and are sufficiently distinct from most 
other things to deserve a place. They are 
increased by cuttings in the same way as 
advised for Croweas, which see. 
The following are the best for pot cul- 
ture :— 
C. glauca. A yellow-flowered species 
from the South of Europe. It blooms in 
summer. 
C. glauca variegata. A variegated form 
of the above ; flowers and general character 
in other respects similar. 
Insects.—For aphides fumigate, and 
syringe freely if red spider appears. 
CORREA. 
The varieties of these evergreen green- 
house plants mostly grown are hybrids, 
raised by crossing the New Holland or 
New South Wales species, the best origi- 
nating from the scarlet-flowered C. speciosa 
crossed with the green-flowered C. virens. 
They vary in colour—from scarlet to deep 
crimson in the tube, with a green or lighter- 
coloured band near the apex of the flower. 
They are very free-growing plants, of com- 
pact habit, much easier to manage than 
many things that have been introduced 
from the same countries. They are free 
flowerers, different varieties coming in 
bloom from April until the close of the 
year, individually lasting in flower for two 
or three months in succession. The flowers 
are tube-shaped, about 2 inches long, hang- 
ing from a stalk produced from the mature 
growth. Why these Correas are not more 
grown for conservatory and general decora- 
tion seems unaccountable, as they have 
much to recommend them for such pur- 
poses, not the least of which is their ability 
to bear, whilst in flower, being placed in a 
more confined situation, with a less amount 
of light than many subjects would stand 
without injury. The absence of these and 
a number of other things that, when well 
grown, are both very handsome and also 
distinct, can only be attributed to fashion, 
the infectious influences of which are very 
often as apparent in the plants we grow, as 
in many other matters. This, and the too 
general disposition evinced to grow sub- 
jects that are difficult to manage, shuts out 
from general cultivation in our greenhouses 
many plants that might with advantage be 
much oftener met with. 
The Correas, being comparatively strong 
rooters, will succeed potted in either peat or 
loam, but, where the former can be had in 
good quality itis preferable ; it should not 
be used too fine, and ought to have added to 
it a fair quantity of sand, so as not alone 
to ensure porosity when the plants are first 
placed in it, but to maintain this condi- 
tion for years, as with ordinary care they 
will last long. They should never be sub- 
jected to any reduction of the ball, or 
shaking out process, consequently it is 
necessary in the first instance to prepare 
the soil so as to ensure its lasting capa- 
bilities. 
All the different sorts strike from shoot- 
cuttings, but we have not found them so 
certain in rooting as many things unless 
when taken off with a heel ; to obtain cut- 
tings in this condition a plant should have 
its branches all, or in part, cut back in 
February, immediately placing it in a little 
warmth to cause it to break more freely. 
By this means cuttings about 3 or 4 inches 
long may be had by the middle of May ; 
put these in an inch or two apart in 
pots filled with sand, placing them in an 
intermediate temperature, kept moderately 
close, moist, and shaded ; they should be 
rooted in two months, when give more 
air and reduce the shading ; move singly 
into small pots and encourage growth by 
keeping them moderately warm until the 
end of August, in the interim pinching out 
the points. Keep through the winter at 
about 45° in the night, and towards May 
they should bear moving into 4-inch pots, 
using soil such as above indicated ; during 
the growing season let them be a little closer 
with an atmosphere somewhat more moist 
thanneedful for larger stock, syringing over- 
head daily. Again towards autumn keep 
cool, and the atmosphere drier, and winter 
as before. Correas do not make so much 
root as many hardwooded plants, there- 
fore it is not advisable to attempt giving 
them more than one shift during the year. 
It is best to re-pot them about the middle 
of April. If the pots are well filled with 
