FOREIGN NOTICES. 



89 



wrong in placing it in a dry, hot, sheltered situa- 

 tion in this country. 



On the other hand, a plant may be a native of a 

 colder country than our own, yet il' its native sit- 

 uation be a sunny, sheltered and dry one, and its 

 season of flovv^ering late, it would surely be wrong 

 and profitless cultivation in this country, to place 

 it in a dull, damp situation ; which, were we to look 

 to the only one circumstance of its coming from a 

 colder country, we W'Ould naturally do. Again, a 

 plant may be, or may seem to be, from such a cool 

 or shady native habitat, as to feel our summer sun 

 too strong and scorching for it, and accordingly 

 require shading from its too powerful beams; 

 while we must not, on the strength of that cir- 

 cumstance, conclude that the plant will stand our 

 winter's rigor without protection. We must first 

 learn w-hether it be a native of the northern or 

 southern hemisphere; if of the latter, that will 

 account for its inability to withstand our summer's 

 sun at a season when, though it be summer with 

 us, it would be winter with the plant in its na- 

 live habitat ; and its nature not being changed 

 with its situation, it is only harassed by our sum- 

 mer's sun at a time when it should have and 

 strives to enjoy its winter's rest ; therefore it can- 

 not withstand our winter's rigor at the season ap- 

 propriated to it by nature for its summer of ex- 

 citement. Were it not for this circumstance, there 

 is no doubt that the half hardy Solly a Heterophyl- 

 la, Billardcria Longiflora, &c., would be among 

 our hardiest wall plants. 



These are circumstances the accliraatizer must 

 well attend to ere he plant out a single exotic ; and 

 next, and of equal importance, the soil in which 

 the exotic is placed, be its richness or its poorness 

 what it may, must be of an open, free, unretcntive 

 texture, and well drained. Such exotics, in gene- 

 ral, as are natives of boiigy or marshy places, can 

 only be kept well over winter in felt-covered pits 

 or frames, or at the bottom of ponds fed by 

 springs. The plant must be started into a strong 

 and rapid growth in spring and early summer, so 

 as to have its growth completed and properly ri- 

 pened before winter, when a covering of as dry 

 and impervious a nature as possible must be laid over 

 its roots, and around its base, or life knot, so as 

 to exclude alike the frosts and the moisture of 

 our changeable winters. If the bole or branches of 

 such plants receive any protection, it ought to be 

 of a nature more to exclude moisture than air, 

 which is often useful in the severest winters. By 

 observing these simple and easy rules, I have ne- 

 ver found much difficulty in having stout and abun- 

 dant flowering specimens, of such generally consi- 

 dered green-house plants as Wistaria Sinensis, 

 Maurandya Barclayana, Jasmines of all kinds, 

 &c. ; on various aspected wails, in many and cold 

 parts of Scotland, they do well for years, where 

 others of a much more hardy nature, but different- 

 ly treated, died during the winter these plants 

 survived. Annals of Horticulture. 



The Verbena. — This plant is rapidly coming 

 into notice, not less for its use in the garden 

 clumps, than its appearance in vases and pots. 

 The colors are more than ever diversified, and 

 each season adds brilliance and beauty to collec- 

 tions. Some persons are checking the advance, 

 by selecting bad instead of good ones from seed- 

 lings. We have seen some of the new varieties 

 approaching the standard pretty well, thoutrli 

 there is much to do yet; but the color of a new- 

 sort captivates many growers sufficiently to pre- 

 vent raisers from doing as they would. Those, 

 however, who wish to advance the flower, should 

 never select narrow petals, nor notched ones, for 

 neither can be good, and the presence of them in 

 a collection would spoil the seed. In choosing any 

 for the garden, fix upon such as are very br«ad in 

 the petals, in preference to any other quality, and 

 when you have done this in each color, von will 

 have laid the foundation for a collection ; but if 

 they are for the flower-garden alone, you have a 

 second point to look for — you must have them 

 dwarf, for a tall, straggling Verbena is good for 

 nothing. lb. 



Motion of the Sap. — In our last number an 

 interesting case of Bleeding at the Root was 

 mentioned by the Hon. James Stuart Wor.TLEY. 

 It occurred to a large birch tree, whose roots, 

 having been cut through, have bled so much that, 

 although not more than 1^ inch in diameter, a 

 neighboring " walk has been standing in puddles, 

 and the sap was still bubbling up through the 

 gravel," at the date of the letter. 



A similar case is mentioned by an anonymous 

 correspondent, who says,'" In lowering the ground 

 near a large walimt tree, some years ago, some 

 larire roots were cut through ; so much bleeding 

 took place in consequence that the tree died." 



A letter received from Mr. Spencer, gardener 

 to the Marquess of Lansdownc, at Bowood, thus 

 describes a third occurrence of the same nature: 

 ■' This present spring, in forming a new walk, I 

 had occasion to cut through three large roots be- 

 longing to an adjoining beech, and which are ex- 

 posed at the present time. Some time about the 

 middle of March I observed the roots were bleed- 

 ing considerably, which has continued more or 

 less ever since, the Jiow being materially influ- 

 enced by the state of the weather. Bv the begin- 

 ning of the present month, the bleeding was suffi- 

 cient to saturate the walks completely. On exa- 

 mining the roots, with an ordinary microscope, I 

 observed the discharge proceeded from the whole 

 of the exposed cells through the section; but, 

 from the larger diameter of the vessels towards 

 the exterior of the root, the bleeding, as a natural 

 consequence, was greatest at that part. I ob- 

 served as well that bubbles of air frequently 

 formed on the cut surface, evidently showing that 

 some kind of gas was present, either in the sap 

 or in the cells. Although in bright weather the 



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6 



