CALENDAR FOR JULY. , 
157 
dant room should be allowed the roots, but by frequent shifting 
they often become too large for an ordinarily sized greenhouse; 
we have one now standing in a tub containing about two bushels 
of earth, which is twelve feet high, and nearly as much in cir¬ 
cumference; so that K. D. will perceive the size of the pots 
should be regulated by the desired size of the plants. The 
Abutilon may also be placed in the open air during summer, 
but both the foliage and flowers are smaller. Some further 
particulars may be found at page 40 of the first volume of the 
Florist’s Journal. 
A Young Amateur—is troubled with the most destructive insect 
possible among Picottees, the wireworm,—and what is worse 
they are very difficult to exterminate. The only available method 
now is to place traps of sliced potatoes or turnips about two 
inches below the surface of the earth, which should be frequently 
examined. During the winter the ground must be thoroughly 
and often turned up, so as to get the greatest possible quantity 
of it frozen through. 
H. S., Barnet.—The propagation of Cacti is performed in 
this manner: The cuttings, when taken off, are laid to dry for 
about a fortnight; they are tlpien potted in light sandy loam 
and leaf-mould; sufficient water is given to settle the earth 
about them and no more : they require to be kept barely moist 
till rooted. When potted off, the soil should be loam, leaf- 
mould, and old mortar, in about equal quantities. 
