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HOETICULTUEE 



March 15. 1913 



ROSE GROWING UNDER GLASS 



CONDUCTED BY 



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Questions by our readers in line with any of tlie topics presented on this page will be cordially received and promptly answered 

 by Mr. Ruziclsa. Such communications should invarjably be addressed to the office of HORTICULTURE. 



That Easter Crop 



It is very seldom that we try to bring iu some house 

 especially for Easter, or for any other holiday for that 

 matter. We always aim to have roses in good quantity 

 all the year round. Only once or twice did we grow the 

 crops especially for the holidays, and we were disap- 

 pointed with the prices these brought, and since then 

 we have practically forgotten there is such a thing as 

 holidays, preferring a steady cut of roses to the holiday 

 crop. We find there is such a great amount of other 

 flowers grown for Easter that an extra large cut of roses 

 for that day is likely to fail when it comes to the price. 

 Of course with the florist who does a large retail trade 

 things are different and he must be guided by his trade. 



Crowding other Stock into the Rosehouscs 



Seeing a house or two of good roses ruined by the 

 grower crowding a lot of bedding stock in among the 

 plants and around the edges of the benches, we thought 

 a line or two on t^ie subject may be of interest. If you 

 can give both roses and the bedding stock the proper 

 care then go ahead and move as much of it in as you like. 

 Our experience shows that neither will get proper care 

 and therefore neither will amount to the high standard 

 that is so sought by nearly all of us now-a-days. If you 

 wish to grow a good many bedding plants, our advice 

 would be to find a bench or two or a whole house for 

 that matter, and tear the roses out and then use all the 

 space for the plants. You will then have plants that 

 you do not have to be ashamed of, and will not be en- 

 dangering the roses in the least. There is only one 

 thing we ever permitted to find its way on the benches 

 of the rose houses and that was Grand Rapids lettuce. 

 This was grown to perfection along the front of the 

 benches and no harm was ever noticed as far as the roses 

 were concerned. Of course the little benches in the ends 

 of the old-fashioned houses and in the cross houses can 

 be well planted to almost anything without any danger, 

 hut we would not try to crowd any plants whatever 

 among the growing roses. 



Spot on the Young Plants 



Be sure to look the plants over very carefully every 

 few days, to be sure and not let blackspot get into them 

 unnoticed. This applies to Beauties especially as they 

 seem to be more subject to it than other varieties. Ee- 



member there is no cure and the only thing to do is to 

 try to prevent it. This can be done by having the air 

 always fresh and sweet and the plants nice and dry for 

 the night, never syringing late enough in the day as to 

 be in doubt in regards to the plants drying off. Leav- 

 ing them wet over night is certainly like inviting trouble 

 and surely we get enough of that without bothering with 

 invitations. It is well to spray the young plants with 

 the ammoniacal copper carbonate which will help pre- 

 vent it, but is not a cure. Fungine has also proven very 

 effective, but that will not cure. The only "cure" is tO' 

 grow the plants out of it if they get a dose of the spot, 

 and being on the lookout for the first one or two that 

 appear, picking these off long before they ever get a 

 chance to breed mischief. 



Mildew on Young Stock 



We cannot see why mildew should ever be allowed to 

 find its way among the young plants, and we can only 

 think of carelessness as the cause. Proper ventilation 

 will insure hardy foliage that will resist an attack, and 

 will live through a sudden change of temperature with- 

 out getting the much dreaded disease, although many re- 

 gard it only as a cold and treat it as such. A little sul- 

 phur applied to the steam pipes will quickly do away 

 with it, but the marks of it on the foliage will always re- 

 main to tell the tale. Therefore it is '^"st to be very 

 careful and never allow any of the plants to get any, 

 and they will be ever so much more vigorous. 



Ventilation these Changeable Days 



With the tliermometer changing with the wind, it is 

 difficult at times to know just how to ventilate so as to 

 keep the houses right. The only thing to do is to keep 

 right after the ventilators, even though it takes nearly 

 all the time to do so. It will pay in the end and anyone 

 is proud to have all his roses free from mildew. 



Night Temperature 



This should be increased a little now that the warmer 

 days are here. Do not allow the temperature to go down 

 too low on the cold nights that come in between the 

 warmer nights. A crack of air can also lie left on with 

 perfect safety now and it will do the plants good, espe- 

 cially with the wide houses. A crack of air will hardly 

 be noticed as far as the coal consumption goes, and the 

 benefits derived make it a very good investment. 



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