HOW TO GROW ROSES 



The Rose-Lover's Calendar 

 of Operations 



These dates will be found relatively correct for the aver- 

 age season in the latitude of Philadelphia. If you live north 

 or south, make the usual allowance of about four days for 

 every 100 miles of latitude. Comparative altitude must also 

 be taken into consideration. The seasons vary; for example, 

 the ground may be in good condition and ready for digging 

 as much as three weeks earlier one year than it will be the 

 following spring. 



March 15. Such hardy roses as are already planted should 

 now be pruned. 



March 25 to 30. As soon as the ground can be well worked, plant 

 new hardy roses which are to be had dormant. Prune these even more 

 closely than older established bushes. 



April 10. Less hardy roses, including the Everblooming class, 

 should be pruned. Begin to remove the winter protection as the increas- 

 ing heat of the sun permits. 



April 15. Roses are not immune from mildew and other fungoid 

 contagious diseases; therefore it pays at this time to spray with bordeaux 

 mixture all your rose plants as well as nearby fruit trees and grape-vines. 



April 25 to 50. Finish uncovering and pruning your roses. Plant 

 new ones (now or until the middle of May). A slight shading of these 

 from the sun will prove an advantage. 



May i to 10. As soon as plants are well set with foliage, a spraying 

 with rose nicotine or sulpho- tobacco soap will act as a preventive 

 against aphides (green fly). 



May 20. As soon as buds begin to swell, weak manure-water may 

 be applied to the plants. Spray again to kill off the aphides, otherwise 

 they will multiply with amazing speed. 



May 25. Now starts the season's procession of bloom, led by the 

 sturdy Rugosas and the Yellow Briar roses. Start feeding the Hybrid 

 Perpetual roses with liquid manure. 



June i. With this month we see the true glory of the "Feast of 

 Roses." 



June 5. Watch for the rose beetle and rose slug, and spray every 

 ten days for three weeks with a half pound of arsenate of lead to ten 

 gallons of water. 



June w. Begin to nourish the Teas and Hybrid Teas with liquid 

 manure. (Page 17.) You'll soon see the result. 



June 20 to 30. Now the Teas, Hybrid Teas, and Climbers begin 

 blooming in abundance. Cut your blossoms freely. Look out for mildew 

 and apply the remedy. 



July i. Keep the soil well stirred, A dust mulch at this season is 

 important. 



