170 



GARDENERS' CHROMCLE 



the more honorable policy of telling" purchasers that these 

 plants are good for one year and can then l>e discarded. 

 As such I can most heartily recommend them. 



The Pernetiana tyi>e of roses of which Soleil d'Or, in- 

 troduced nearly a quarter of a century- agx) is probably the 

 oldest member, has come very much to the fore the last 

 few years. They were originated by that skillful P^rench 

 rosarian, M. Pernet Ducher, from whose hands have come 

 so many good garden roses. By utilizing the brilliant 

 Austrian Copper as one of the parents he has given us a 

 class of roses carrying flowers of exceptionally rich and 

 unusual color, particularly in the copper and apricot 

 shades. Amongst the yellow shades of these, which I 

 have seen in very good condition this season in Massachu- 

 setts are Constance, Soleil d'Or, and that wonderful va- 

 riety. Souvenir de Claudius Pernet, which has attracted 

 more attention than any new intrtxluction in late years. 

 The value of this latter rose in the garden has 

 yet to be demonstrated. Like all of the Perne- 

 tiana varieties it is quite susceptible to black spot. 

 Dust spraying is more effective in combating this 

 than any of the liquid fungicides and it is much more 

 easily applied. I have found that by using eight parts of 

 sulphur and one each of lime and dry arsenate of lead, 

 and dusting the roses susceptible to black spot once in 

 two weeks during the flowering season, this unsightly 

 disease can be largely eliminated. This dust spraying 

 has proved very effective in controlling the sooty blotch 

 fungus on such apples as Macintosh Red and for plun.is 

 and ijeaches : in these latter cases omitting the arsenate of 

 lead, which controls certain leaf eating insects on the roses, 

 and using an additional part of lime in its stead. 



Harking back to the Pernetiana roses there are a num- 

 ber of copper or apricot shades which are doing quite well 

 in some northern gardens. I doubt, however, whether 

 these will prove long lived, even under favorable condi- 

 tions, though their exquisite colors will create a big de- 

 mand for them even if they only last two or three years. 

 Sjjecially fine amongst these the present season are Juliet, 

 Mme. Eidouard Herriott (better known as the "Daily 

 Mail Rose"), Mi.ss Lolita Armour, Louise Catherine Bres- 

 lau, and Arthur R. Goodwin, the newer Souvenir de 

 George Beckwith and Souvenir de Georges Pernet are 



both lovely, but more time is neetled to trv them out. 

 * * * 



There are now many beautiful and distinct species of 

 roses that aiuateurs would do well to take up. as they 

 are in nearly all cases of more vigorous habit than the bush 

 roses; they are not adapted for culture in beds in the .same 

 way. A sloping bank devoted to the various si>ecies is 

 ideal or they have a ]>lace in the shrubl>ery border. Some 

 of these species flower very early but by growing a num- 

 ber of kinds quite a long succession of bloom may be had 

 and many are very attractive wlicn in fruit. R. llugonis 

 since its introduction has been in tremendous deiuand and 

 is certainly a lovr;ly vellow ro.se. It is the only really 

 dependable yellow, shrubby habited rose we have apart 

 from the Persian Yellow, Austrian Copper, and Ilarri- 

 .son's Yellow. A new Asiatic species at the .\rnold Ar- 

 boretum, Rosa Ecae is very promising and flowers even 

 earlier than R. Mugonis with somewhat smaller and ])aler 

 yellow colorefl flowers. It is also a more vigorous grower 

 and its frequent foliage is a great attraction. This rose 

 will i>robably be olTcred in the trade in a moderate way 

 ne.xt season. R. rubrifolia, a Euro])ean variety, is very 

 striking in any collection of roses on account of its foliage 

 being tinted with pur])lish red. R. setigera, the well 

 known "Prairie Rose," is s]>lendid for mass effects, as R. 

 Wichuraiana, the "Memorial Rose," is for cf)vering bare 

 Iwnks. Rosa spinosissima altaica has l)een dubbed the 

 "Northern Cherokee Rose." It is a very sui)erior form 



of the ."scotch Rose and carries lovely single white flowers 



three inches in diameter. R. multiflora, carrying clusters 



of ])ure white flowers, is well known and deservedly ]x>pu- 



lar, not so well known is R. nuiltiflora Catheyensis, a very 



vigorous grower with clear pink flowers produced in 



great profusion. Rosa omeiensis from Western China 



is offered m the trade and is one of the best of the newer 



species, of vigorous habit, its pure white flowers followed 



by very attractive fruits. These are but a few of the many 



'>eautiful species of roses. Particularly striking in the 



.Arnold .\rboretum collection at the time of the visit by 



members of the American Rose Society was Rosa Ar- 



noldiana, raised by the late Jackson Dawson by crossing 



rugtisa and the old ix>pular hybrid ]>erpetual. General 



Jacqueminot. This hybrid is of erect habit, very vigorous, 



and is smothered with large single or semi-double flowers 



which are bright red in color; this fine variety is offered 



in the trade. 



^ * * 



.\ reader of the Garoeniir's Chromci.i-: of .America 

 has written to me in regards to remarks made in the May 

 issue about one of the species of tulip, Turkestanica, 

 throwing several flowers to the bulb, and states that he 

 had noted the same thing in the case of La Tulipe Noire, 

 a well known and popular Darwin Prsestan, another 

 species, -will often throw several flowers to the bulb. The 

 tulip, however, which will the most consistently produce 

 several flowers to the bulb is another inexpensive and 

 popular Darwin, usually called Gretchen, Init occasionally 

 Margaret. This ]>ink Darwin is a splendid bedder and the 

 abundance of small side flowers practically hides the soil 

 from view. One or two varieties of the early forcing 

 tulips show the tendency to throw side flowers, but at 

 this time I cannot recall the particular varieties. For 

 bedding purposes the production of several shorter 

 spiked and smaller flowers circling the main stem is a 

 decided advantage, although forcers of tulips for cutting 

 would no doubt prefer single flowers to a bulb. There 

 are no doubt other readers of the Chronicle who have 

 noticed the tendency of certain tulips to throw several 

 flowers to a bulb and their experience would lie worth 



recording. 



* ^ * 



Very beautiful in early July are the Delphiniums in the 

 hardy perennial liorders. They come in an almost infinite 

 range of blue shades. .Associated with Lilium candidum 

 or that newer IjiU mo.^t satisfactory garden lily, L. regale, 

 the combination is almost irresistible. There are now 

 many beautiful named hybrids of D. formosum which pro- 

 duce the most stately spikes. These are made more a 

 feature of in Great Britain than here, and Aiuericans 

 visiting the big Summer shows over there marvel at the 

 size and ntagnificence of the spikes exhibited. The Brit- 

 ish climate is more of an ideal one than ours for the 

 culture of Delphiniums and the bulk of herbaceous peren- 

 nials, as it has a much lower mean tem]K'rature, more 

 frequent rains, and only occasional S])ells of sizzling heat 

 such as we are subjected to here but their ease of culture 

 is such that anyone can soon have .1 stunning show if l-.e 

 will care for the seedlings. 



1 lardy larkspurs have jum]>ed into favor very Tuuch in 

 recent years for forcing purposes and remarkably good 

 qiikes were to be seen at the New ^'ork show in the 

 middle of March. I'orcers of these flowers have their 

 tniuliles with stems damping ofl' which 1 will not go into 

 now, and outdoor growers also have some worries when 

 they see stems throwing defonncd flowers and many 

 leaves l)ecr.ming black in color. Plants which have been 

 undivided for several years are most susce]>tible Ui this 

 di.sease. Disea.sed stalks should lie cut ulT ,ind Innncd 

 {Continued on /'rt.ifc 1"4) 



