PLANTS MOST SOLD IN MARKET IK SPRING. 151 



the Verbena becomes affected by black rust, showing that 

 its minute enemy is at work sapping its life current. 



Verbenas, whether grown for sale or for private use, if 

 we would have plants in fine health and vigor in May, 

 should not be propagated sooner than January. To be 

 sure, the " stock " plants, to produce the cuttings, must 

 be raised previous, in October or November, but such 

 plants become exhausted by spring and are inferior to 

 later propagations. The "stock" plants, from which we 

 propagate, are usually thrown away by March 1st. 



In our own practice the necessities of our business re- 

 quire us to put in an almost uniform number of cuttings 

 every two weeks from November to April ; the last lot, 

 which we pot off at the end of April, usually making the 

 finest plants. For the raising of Verbenas from seed, see 

 chapter on Propagation by Seeds. 



CHAPTER XXXI. 



THE PLANTS MOST SOLD IN MARKET IN SPRING. 

 GROWN IN COLD FRAMES. 



Pansies are the most important of the millions of 

 plants raised in cold frames now sold each spring. For 

 our manner of raising, see " Pansies " in chapter entitled 

 "Propagation by Seeds." Also, for manner of con- 

 structing " cold frames," see chapter under that head. 



Daisies are usually raised by setting out the stock 

 plants in spring in some cool and partially shaded place. 

 If they grow freely, each single plant set &s.t in spring 

 will divide to a dozen or more, ready to be set ojt in the 

 cold frames in September or October. Very good varie- 

 ties can also be raised from seed, particularly the double 



