80 CLIMBING PLANTS. [April. 
also have a portion of sand or fine rotten rock thoroughly 
mixed with it ; and then, and not till then, the propretior 
may. expect satisfaction. 
CLLMBIXG PLANTS. 
As shade is much required in this country, and plants 
suitable for covering arbours, &c, eagerly sought for, we will 
make a few remarks on those which are preferred for their 
beauty, growth, hardiness, &c. 
Aristolochia sipho Birthwort, or Dutchman's pipe, is a very 
curious blooming plant, with extraordinary large foli- 
age, and makes an excellent arbour-twiner, affording 
a dense and cooling shade. 
Calystegia pubescens, flower double, of a blush white colour, 
of rather free growth ; dies down in winter and grows 
up again in spring ; blooms from June to August. 
Clematis viticella pulche/la, or double virgin's bower, is an 
esteemed climbing plant, of rapid growth, with large 
flowers in great profusion from June to September. 
There are several varieties of the above, two of them 
single, and it is said that there is likewise a double 
red. 
coeridea, C. ccerulea grandiflora, and C. ensured gran- 
diflora. This beautiful and entirely new climber is 
already distinguished by three distinct names, and 
has been several times figured, each time with more 
or less flattery. I must confess the first representa- 
tion I saw of it, truly enchanted me ; the brilliancy 
of its blue surpassing every flower I had ever beheld ; 
and named G. azurea grandiflora. The flowers are 
frecpiently four or five inches in diameter, of a fine 
bluish violet colour, blooming freely, and perfectly 
hardy, the most magnificent of the family. 
G. Sieboldii, or bicolour. This is another of Dr. Van Sie- 
bold's Japan additions, and is nearly related to C. 
florida. The leaves and branches, however, are rather 
more downy, and the petals suffused with violet 
spots ; the anthers are also of a violet colour, which 
has given it the name of bicolour; it is of graceful 
