211 
rot the roots in winter. They should also be sheltered from 
rough winds. Pelegrina will be found the tenderest of the 
genus, excepting the stove species — caryophylla. If grown 
in the greenhouse, Simsii, hoemantha, ligtu, tricolor, and aurea, 
will require a period of rest, from the beginning of August till 
November; whilst pelegrina, psittacina, and Errembaultii, will 
require very little. They should be fresh potted every season, 
in pots as small as they will conveniently go into; and as they 
fill them with roots, they should be shifted into larger, when 
they are growing very fast, which will be in April and May. 
They must be protected from rough winds, and will require a 
great quantity of water, for if suffered to Hag, the ends of the 
leaves will wither, and make them unsightly. They should 
have as much free mild air as possible. The soil should be 
one-quarter rotten hotbed manure, and the remainder light 
sandy loam. The twining varieties (now called Bomaria), 
such as acutifolia, hirtella, &c., will require a rope or other 
convenient support. 
■201 Root Pruning. We now fulfil the promise to introduce 
our readers to a knowledge of the practice of Root Pruning 
unproductive Fruit Trees, of luxuriant growth, for the purpose 
of rendering them fruitful ; a subject which will obtain the 
earnest attention of every thinking horticulturist. This practice 
has, long ago, lieeu partially followed, but to Mr. Rivers, of 
Sawbridgeworth, belongs the merit of introducing it more 
prominently to public notice. It ought, however, to be men- 
tioned that, several years ago, Mr. Errington, the gardener at 
Oulton Park, stated, in a communication to the Gardeners’ 
^lagazine (vol. 6, p. 693), the advantages he had obtained from 
Root Pruning his Peach, Pear, and Plum, trees. 
This operation may be performed in any month, between the 
end of October, and the beginning of the following March; but 
that which has hitherto been recommended is November. 
Before this month be, as a matter of course, received as the best 
in which Root Pruning can be performed, we hope that some of 
our horticultural friends will, by direct experiment, establish its 
claim to superiority. We know that the roots of trees are not 
wholly inactive during winter, and if they form, in that season, 
a necessary reservoir of fluids, advantageous to the nutrition of 
blossoms, which, on account of the temperature of the atmos- 
206 , AUCTABIUM. 
