ROCK-GARDEN PRIMULAS 



Auriculas that were once even more popular than now. 

 The members of this section are essentially European, 

 for they are chiefly found on the mountains of Central 

 and Southern Europe. All are furnished with stout fleshy 

 roots, which act as reservoirs of sap, and reach far down 

 into the interstices of rocks, where they develop a mass 

 of rootlets for supplying the plant with moisture. The 

 chief requirement 

 of these Primulas 

 is a deep, perfectly 

 drained soil, where 

 the plants can 

 always obtain 

 moisture. They 

 like a horizontal 

 position in the 

 cracks and crevices 

 of rocks, where 

 the roots can pene- 

 trate deeply, for 

 in such positions 

 they can resist 



drought to almost any extent. In the warmer parts 

 of this country nearly all the Rock Primulas should 

 be planted in half-shady places, where they only get sun 

 for part of the day. In their natural habitats some are 

 found confined to calcareous or limestone rocks, while 

 others are found only on granite. In planting and 

 in mixing up soil for the various species this should 



