FERNS IN THE MIXED BORDER 43 



able weeds is imperative, and a little thinning 

 out of over-zealous species like the sensitive 

 fern (Onoclea sensibilis) and the bladder fern 

 (Filix bulbifera). Careful shearing of grass 

 is also necessary where we compromise 'twixt 

 Nature and Art. 



In the fall preservation is effected by pack- 

 ing deciduous fronds over their own roots 

 and allowing some of the dead leaves which 

 have blown among the ferns to remain as 

 they do in Nature. 



This is all very well for the ferns, but dead 

 leaves blowing about the lawn after fall 

 cleaning are objectionable. This is obviated 

 by spreading evergreens over the fern beds 

 and borders; these serve to hold the leaves 

 in place and to cover all that is unsightly. 



Discretion must be used in removing the 

 boughs in the spring; in a sheltered situation 

 there is little danger of being too previous, as 

 ferns are not easily spring killed; but there 

 is danger in delay after life stirs, for the 

 delicate crosiers are sure to be broken or 

 beheaded in a belated cleaning. It is granted 



