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The Florists^ Review 



APBili 8, 1*20 



perfect specimen for the lawn or formal 

 avenue. 



"The bur oak, scarlet oak and white 

 oak are all good trees that are known 

 to succeed in the latitude of T^oster 

 and over the entire state. Less well 

 known but equally choice and desirable 

 are the chestnut oak, the willow oak, 

 from the south, and the shingle oak 

 (Quercus imbricaria), sometimes called 

 the laurel oak, which is one of the rich- 

 est and handsomest of all oaks in its 

 garb of glossy, dark green leaves. The 

 willow oak, though most abundant in 

 the southern states, has proved to be 

 entirely hardy and satisfactory in Ohio. 



Elm, Ash, Linden and Maple. 



"For alluvial lands and all rich soils 

 the American white elm is unrivaled in 

 majesty and grace. A moderately fast 

 grower, the elm lives to an extremely 

 old age, its beauty increasing from year 

 to year. For street planting the elm is 

 unexcelled where soil conditions are 

 suitable. 



"The white ash and the American 

 linden or basswood have a high land- 

 scape value and are known to succeed 

 over a wide range of country. 



"Probably no group of our native 

 trees has been more popular for lawn 

 planting than the maples, particularly 

 the Norway maple. The most lasting 

 of our native species is undoubtedly the 

 sugar maple, which ought always to be 

 transplanted before it exceeds two 



have high value for street planting 

 through their resistance to dust, gas and 

 smoke. Foremost of these is the orien- 

 tal plane or European sycamore, a large, 

 spreading species somewhat similar to 

 its American prototype, but in most re- 

 gards a finer, more desirable tree. The 

 foliage of this plane is quite free from 

 the fungous diseases that disfigure the 

 American tree, while its head is much 

 more adequately supplied with limbs 

 and branches. The Norway maple is 

 another good smoke and gas resistor, 

 whose merits appear now to be pretty 

 generally recognized." 



The ginkgo has already been referred 

 to as a good tree for city use; it is gen- 

 erally both healthy and handsome in a 

 city environment. Perhaps the Chinese 

 cork tree, Phellodendron amurense, 

 though omitted from the agricultural 

 bulletin, might appropriately be men- 

 tioned in this connection, since it flour- 

 ishes luxuriantly in city conditions, or 

 at least in Chicago conditions. It is 

 like the ginkgo in being remarkably 

 free from pests, but is an absolute con- 

 trast to the ginkgo in habit of growth. 

 It has large pinnate leaves and its 

 branches are wide-spread, forming a 

 round head. It is naturally somewhat 

 irregular in form, but may be trimmed 

 freely. 



Distance Apart in Bow. 



As to the proper spacing of trees 

 along roads, streets and avenues, the 



Planting Time Is Here! 



Last week's rains wanned oJd Mother Earth and 

 pat the grround in fine condition. Now is the time 

 to select your plants, shrubs and trees so that 

 your grounds will be in beautiful array by summer 

 time. 



Telephone or write for our interesting booklet on 

 Ranting. It will be a valuable help both in ideas 

 and instruction. 



Swain Nelson & Sons Co. 



938 Marqnett* Building, 

 Chicago 



JriicesAPUntsI 



With the Arrival of Warm Weather It's Time to Urge Planting. 



inches in diameter. For securing early 

 results the silver maple has few equals, 

 but it can scarcely be considered a satis- 

 factory permanent tree. The soft, brit- 

 tle wood is easily damaged by high 

 winds and most old specimens are much 

 dilapidated. Wier's cut-leaved silver 

 maple is a wonderfully graceful variety 

 of silver maple, with a pendulous, weep- 

 ing habit. The scarlet or rock maple 

 does best on low, moist lands and col- 

 ors up in autumn extremely well. 



' ' A few trees from foreign countries 



bulletin states that the distances de- 

 pend on the species, on the width of 

 the thoroughfare and most of all on the 

 intentions or expectations of the planter 

 in regard to the permanence of the tree- 

 row. Along many streets the trees have 

 been spaced too closely for a permanent 

 planting and no thinning has been 

 done; hence the presence of many tall, 

 pinched, ill-shaped maples and elms. 

 Unless the planter proposes to thin as 

 required, ' * the larger trees, such as the 

 white elm and red oak," says the bul- 



letin, "should be spaced sixty feet for 

 the former and forty-five to fifty feet 

 for the latter. A space of forty-five feet 

 will sufice for most other oaks. The 

 American white ash and pin oak should 

 stand thirty or thirty-five feet apart. 

 The sugar maple and silver maple should 

 have a space of forty feet. The ginkgo 

 ought to have a space of thirty feet. 

 Theoretically, the plan of spacing closely 

 and thinning by taking out alternate 

 trees when they begin to crowd is a 

 most admirable one, but reluctance to 

 thin them at the right time generally 

 defeats the original good intentions of 

 the planter. ' ' 



Sesults of Eeckless Pruning. 



Trees generally should be headed 

 back more or less at the time of plant- 

 ing, if the top greatly overbalances the 

 roots. Thereafter, heavy pruning is 

 seldom needed. On this point the bul- 

 letin says: * * The pruning of shade trees 

 is a subject concerning which informa- 

 tion is often desired, and in a general 

 sense it is safe to say that the matter 

 is usually overdone. During the earlier 

 years of a shade tree's existence but 

 little cutting will be required beyond 

 such as is needed to remove broken or 

 otherwise injured limbs or to preserve 

 a moderately symmetrical, well balanced 

 head. As the specimens grow older and 

 often encroach upon one another or sus- 

 tain injury from storms, heavy cutting 

 will sometimes need to be done. The 

 indiscriminate topping and heading in 

 of trees, particularly such as is in evi- 

 dence along most village streets, can- 

 not be too severely condemned. The 

 heavy, unsightly stubs thus produced 

 afford openings through which the germs 

 of decay enter and speedily work havoc 

 to the larger branches and to the trunk. 

 If the trees are properly spaced when 

 planted, or are thinned later to avoid 

 overcrowding, little or no pruning will 

 be needed and the lives of the trees will 

 be greatly prolonged." 



PLANTING TIME. 



When the warm days arrive it is the 

 right time to remind the home owner 

 of the opportunity spring offers for 

 beautifying his grounds by plantings 

 that will develop under the influence of 

 April showers. Often a suggestion is 

 all that is required — the desires of the 

 home owner do the rest. The local 

 papers give florists and nurserymen 

 this opportunity. The illustration on 

 this page shows the form of the sugges- 

 tion to the Chicago public given by the 

 nursery firm of Swain Nelson & Sons 

 Co., in SVi-inch double-column space in 

 the Chicago Tribune last week. This 

 firm has a large clientele in that city 

 among the people who decorate their 

 home grounds horticulturally. 



In this advertisement may be seen 

 the new trade-mark of the American 

 Association of Nurserymen, introduced 

 to the Chicago public for the first time 

 in this appearance. 



PREPAKED HYACINTHS. 



We should like to know what success 

 the trade has had with prepared hya- 

 cinths and how early they can be 

 brought into bloom. G. B. & C. — Pa. 



Prepared hyacinths can be flowered 

 earlier than the ordinary Dutch hya- 

 cinths. A few were noted in flower at 

 Christmas, 1919, but the majority were 



