! 
68 HINTS ON THE MANAGEMENT OF A FEW ORNAMENTAL PLANTS. ' 
! 
tint when exposed to the weather without the intervention of glass. An instanc 
of this which must be familiar to many of our readers, is exhibited in the Aquilegi 
Skmneri^ a native of Guatemala, which though a hardy plant or nearly so in tli 
southern counties, must be regarded as a greenhouse species in the northern and 
elevated midland districts. The same tendency to acquire brilliancy in the opel 
air is also witnessed in the common scarlet Verbena^ in the Lychnis Bungeana an' 
L. coronaia^ in several of the Zichyas, and other New Holland LeguminossB, i 
the Cuphea strigulosa recently figured, and by several other plants in a more o 
less conspicuous degree, amongst which, flowers of other hues might also b 
adduced. It is not, however, an unvarying rule with all plants; for results exactl 
the converse are daily witnessed, probably in a large measure produced by th 
induction of too much aqueous fluid into the system. But this is not the place t 
enter into any abstruse speculations — we are now dealing with facts ; and to sho\ 
the relation of these premises to practical purposes, we have yet to bring forwar 
a still more obvious instance, than any of those just advanced. We allude to tli 
Brugmansia sanguinea (or B. hicolor^ as it is sometimes called), when planted on 
of doors. 
The deficiency of colour, togetlier with the inveterate attacks of the red-spidej 
and thrip on the leaves of this plant when grown in stoves or greenhouses, hav 
almost accomplished its exclusion from collections. In a few instances, we mee: 
with plants in the open air, but these are by no means so frequent as the ornat 
mental capabilities of the species are entitled to. In a dry, sheltered, sunny plac 
on a lawn, it grows vigorously and expands flowers abundantly, but in such situ 
ations, unless very carefully protected, it will be destroyed in an ordinarily sever 
winter. 
At Chatsworth, we have grown it for several years trained against tli 
conservative wall,” where its long, trumpet-formed flowers constitute a trul; 
splendid feature throughout the latter part of summer, and notwithstanding th 
usual severity of the seasons in Derbyshire — continuing till near the close of tli'* 
year ; and it is remarkable, that the depth and brilliancy of the colours increase af 
the autumn advances. During the months of August, October, and in milde 
seasons December, they are most abundant, presenting almost an unbroken mas 
of inflorescence. The number of flowers disclosed on one plant at the same time^ 
in each of these months, exceeds an average of two hundred. |; 
Little attention is required beyond occasional syringing in dry weather, an 
thinning out the superfluity of young shoots, in summer. Independent of othe|| 
benefits conferred by these operations, they are both essential to the perfect sub 
jugation of insects. When the young growths are left in a too crowded state, the^ 
become completely covered with green-fly and the leaves are constantly falling offi^ 
and unless they are syringed during the continuance of a dry atmosphere, they ar 
apt, even in the open air, to be overrun with the red-spider. Thinning out th 
summer growths is further beneficial in increasing the size of the blossoms and tb 
