TRE 



[ 790 ] 



TRE 



white-green as with the rest. In massing 

 these tints an attention must he con- 

 stantly kept up to their forms, that they 

 do not lie in large stripes one beyond 

 another; but that either they be quite 

 intermingled, or, which is generally more 

 pleasing, that considerable pieces of 

 different tints, each a beautiful figure, be 

 in diiferent proportions placed near to- 

 gether. See CLUMP, AVENUE, and GKOVE. 



TRKE MALLOW. Lava 1 1 era arbo'rea. 



TKEE OF SADNESS. Nycta'nthes a'rbor 

 tri'stis. 



TREE or CANADA ONION. (A' Ilium 

 proli'ferum.} This is without a bulbous 

 root, but throws out numerous offsets. 

 Its top bulbs are greatly prized for 

 pickling, being considered of superior 

 flavour to the common onion. 



It is propagated both by the root offsets, 

 which may be planted during March and 

 April, or in September and October, and 

 from the top bulbs, which are best planted 

 at the end of April. The old roots are 

 best to plant again for a crop of bulbs, as 

 they are most certain to run to stems. 

 Plant in rows twelve inches asunder, in 

 holes six inches apart and two deep, a 

 single offset or bulb being put in each. 

 Those planted in autumn will shoot up 

 leaves early in the spring, and have their 

 bulbs fit for gathering in June or the 

 beginning of July. Those inserted in the 

 spring will make their appearance later, 

 and will be in production at the close of 

 July or early in August. They must not, 

 however, be gathered for keeping or 

 planting until the stalks decay, at which 

 time, or in the spring also, if only of one 

 year's growth, the roots may be taken up 

 and parted if required for planting ; but 

 when of two or three years' continuance, 

 they must, at all events, be reduced in 

 size, otherwise they grow in too large and 

 spindling bunches ; but the best plan is 

 to make a fresh plantation annually with 

 single onsets. 



The bulbs, when gathered, must be 

 gradually and carefully dried in a shady 

 place, and if kept perfectly free from 

 moisture will continue in good state until 

 the following May. 



TRELLIS, or TRJEILLAGE, is an arrange- 

 ment of supporters upon which to train 

 plants. 



Espalier Trellis. The cheapest, the 

 easiest, and the soonest made is that 

 formed with straight poles or stakes of 

 ash, oak, or chestnut, in lengths of from 



five to six or seven feet, driving them in 

 the ground in a range about a foot distant, 

 all of an equal height, and then railed 

 along the top with the same kind of poles 

 or rods, to preserve the whole form in a 

 regular position. They should be full an 

 inch and a half thick, and, having pointed 

 them at one end, drive them with a 

 mallet into the ground in a straight range, 

 close along the row of trees, a foot deep 

 at least. To render treillage still stronger, 

 run two, three, or more ranges of rods, 

 along the back part of the uprights, a foot 

 or eighteen inches asunder, fastening 

 them to the upright stakes either with, 

 pieces of strong wire twisted two or three 

 times round, or by nailing them. 



Espalier trellis made of cast-iron rods 

 is neater and much more durable than, 

 that made of wood. 



Trellis for Climbers. These have been 

 greatly improved, or rather, they have 

 been created within these few years, for 

 ten years ago we had nothing but stakes 

 and rods. 



Their forms are now various and 

 elegant; but we shall here only explain 

 the manner in which the wire trellis for 

 climbing plants is attached to the pots 

 It will be seen that a strong wire ring ia 



carried round the pot a little above its 

 bottom. To this a sufficient number of 

 upright wires are attached all round. 

 These upright wires are pressed down 

 upon the surface of the pot till they 

 reach the rim, over which they are firmly 

 bent till they reach the highest point of 

 the rim, or are even bent a little within 

 it. At this point they are secured by a 

 second ring of stout wire, adjusted as in 

 the drawing, which having been done, 

 the uprights are directed upwards, and 

 fashioned into the pattern required. By 

 these means a sort of collar is formed 

 upon the rim of the pot, which prevents 

 the trellis from slipping downwards, 

 while, at the same time, the lowest ring 



