"HARDY" RHODODENDRONS 247 



a matter of fact a far greater number of the species 

 find a home on humus-clad rocks and cliffs than in 

 peat swamps. 



in regions where the seasons are milder than in 

 New England, these Rhododendrons will thrive in 

 positions more or less fully exposed to the sun; but 

 no matter where they are planted they must never be 

 allowed to suffer from drought. The root system of 

 all Rhododenrons is fibrous and scarcely descends 

 more than a foot below the surface. Obviously a 

 mass of fine hair-like roots near the surface of the 

 ground cannot withstand drought and the need of a 

 mulch of leaves is clearly shown. On account of 

 their fibrous root system, Rhododendrons are easy 

 subjects to transplant provided this be done with a 

 large ball of earth and due attention be given to 

 keeping them properly supplied with water after- 

 ward. 



The hardy members of the Azalea section are all 

 virtually deciduous and a majority will stand more 

 exposure to sun and drier conditions than will their 

 evergreen relatives, but drought has very evil effects 

 .upon these also. It is advisable to place these 

 Azaleas fairly close together and, as a ground cover, 

 to plant different varieties of Heather (Calluna vul- 

 gar is) and hardy Heaths (Erica carnea, E. vagans), 



