April 26. 1913 



HORTICULTURE 



631 



ROSE GROWING UNDER GLASS 



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Qnesttona by our readers In line with any of the toplci presentsd on this page will be cordially received and promptly answered 

 by Mr. Ruzlcka. Such communications should Invaijiably be addressed to the office of HORTICULTURE. 



Watering Young Plants 



During these bright, clear, and sometimes very windy 

 days, the young plants will dry out very rapidly, and if 

 not watched carefully will dry out to such an extent as 

 to be harmful to their growth. Plants that have become 

 very badly stvmted through improper watering will sel- 

 dom recover altogether, and will always show the check 

 in growth. It is well to go over the plants several times 

 a day if need be and water the most outside rows. As 

 for the plants on inside, i. e., those away from the edge of 

 the benches, if these are watered with great care, they 

 will, dry out very evenly and will seldom require touch- 

 ing up. Never water late in the afternoon, so that all 

 the foliage has had a chance to become perfectly dry 

 before the sun sets. After syringing it is well to turn on 

 a little heat and keep the ventilators more open to 

 finish drying the plants. Also blow a little air slacked 

 lime underneath to take up any excess of moisture there. 



The Young Beauty Plants 



No doubt many of these will be getting qviite tall and 

 will have to be spread apart to give them a little more 

 room and a better chance to develop. It does not pay to 

 crowd the young plants, as many have found out. We 

 should always remember that our next season's cutting 

 partly depends on these plants, and if they are not cared 

 for properly now the results will likely fall below the 

 level of our expectations. 



Spot on Young Beauties 



It pays to go over the plants quite often and pick off 

 the least little leaf that shows any inclination toward 

 spot. Get it when it is small; do not wait for it to 

 spread to all the surrounding plants, or through the 

 whole bench. A spray of copper carbonate is very good 

 to apply and will do considerable to prevent this dreaded 

 disease. Plants sprayed with Fungine seem to be more 

 spot-proof, but as we have had very little trouble with 

 spot as a whole, we could not give any definite answer 

 as to the results. This applies to the copper carbonate 

 as well. It will not cure spot by any means. There is 



no spray that really will. But it will go a good ways 

 toward preventing it. 



Feeding the Young Plants 



If the plants have been potted into good soil, such as 

 has been frequently recommended through these col- 

 umns, it will not be necessary to feed them with liquid 

 in any form. At times, however, we wish to have an 

 extra lot of nice plants for a certain house, and it is then 

 that a little feed applied now and then will do them 

 worlds of good. Never apply the liquid very strong, 

 and make sure that the plants are perfectly wet before 

 applying any at all. Plants in pots are even more par- 

 ticular than those in the benches, as the roots are con- 

 fined and the plants have to take what is given to them, 

 and have no chance to reach out into the surrounding 

 soil to get what they need. 



Yellow Leaves 



No matter how well or how carefully roses may be 

 grown there will always be some yellow leaves. These 

 should be picked off as fast as they appear and we think 

 it ought to be a part of the day's work to clean up a bit. 

 Even the old houses should be swept after each syring- 

 ing, and the leaves removed from the house and burned, 

 not swept under the benches as is done on a good many 

 places. Underneath the bench is no place for the old 

 leaves as they only help to house the thousand and one 

 different insects that we greenhouse men have to battle 

 with, and most of us know what it would mean to lose 

 this battle. 



The Ice Box 



Now that the weather is bound to be warm, a supply 

 of ice should never be wanting on any rose-growing 

 establishment. Another important and often very sadly 

 neglected item is fresh water in the jars. All the water 

 should be fresh and sweet all the time and the jars 

 themselves kept clean, so that no one would ever hesi- 

 tate to drink from them. Judging from the condition 

 of these jars on many places, this is a bold statement, 

 but nevertheless a true one. Cleanliness is next to god- 

 liness. 



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