68 
HINTS ON THE MANAGEMENT OF A FEW ORNAMENTAL PLANTS. 
tint when exposed to the weather without the intervention of glass. An instance 
of this which must be familiar to many of our readers, is exhibited in the Aquilegia 
Skinneri, a native of Guatemala, which though a hardy plant or nearly so in the 
southern counties, must be regarded as a greenhouse species in the northern and 
elevated midland districts. The same tendency to acquire brilliancy in the open 
air is also witnessed in the common scarlet Verbena, in the Lychnis Bungeana and 
L. coronata, in several of the Zichyas, and other New Holland Leguminosse, in 
the Cuphea strigulosa recently figured, and by several other plants in a more or 
less conspicuous degree, amongst which, flowers of other hues might also be 
adduced. It is not, however, an unvarying rule with all plants; for results exactly 
the converse are daily witnessed, probably in a large measure produced by the 
induction of too much aqueous fluid into the system. But this is not the place to 
enter into any abstruse speculations — we are now dealing with facts ; and to show 
the relation of these premises to practical purposes, we have yet to bring forward 
a still more obvious instance, than any of those just advanced. We allude to the 
Brugmansia sanguined (or B. bicolor, as it is sometimes called), when planted out 
of doors. 
The deficiency of colour, together with the inveterate attacks of the red-spider 
and thrip on the leaves of this plant when grown in stoves or greenhouses, have 
almost accomplished its exclusion from collections. In a few instances, we meet 
with plants in the open air, but these are by no means so frequent as the orna- 
mental capabilities of the species are entitled to. In a dry, sheltered, sunny place 
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 severe 
winter. 
At Chats worth, we have grown it for several years trained against the 
"conservative wall," where its long, trumpet-formed flowers constitute a truly 
splendid feature throughout the latter part of summer, and notwithstanding the 
usual severity of the seasons in Derbyshire — continuing till near the close of the 
year ; and it is remarkable, that the depth and brilliancy of the colours increase as 
the autumn advances. During the months of August, October, and in milder 
seasons December, they are most abundant, presenting almost an unbroken mass 
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, and 
thinning out the superfluity of young shoots, in summer. Independent of other 
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, they 
become completely covered with green-fly and the leaves are constantly falling off ; 
and unless they are syringed during the continuance of a dry atmosphere, they are 
apt, even in the open air, to be overrun with the red-spider. Thinning out the 
summer growths is further beneficial in increasing the size of the blossoms and the 
