ON HARDY BULBS AND TUBERS. 



333 



All the Bearded Irises like a fairly dry and sunny position, 

 and are best t?'a7isplanted as soon after flozvering as possible. 

 This should be done every third year, planting only the strongest 

 crowns, which break off from the bulk, and burning the 

 remainder. 



. Other handsome Rhizomatous Irises are : /. Monspur^ /. orieti- 

 falis^ I. spuria 77iaJor^ I. aurea^ and /. Monnierii. These all 



Fig. 2IO. — Iris sibirica. 



have large handsome flowers, and are excellent for the ordinary 

 border or for planting by the sides of streams. They attain a 

 height of from 3ft. to 5ft. The Siberian Irises (/. siinrica, 

 Fig. 210) are also fine border-plants, and are alike valuable for 

 lakeside planting — a trifle above water-level. Their flowers are 



