THE FLOEAL WOBLD AND GAEDEN GUIDE. 



205 



Tinea, or Periwinkle. — The minor gold and silver variegated 

 varieties are excellent rock plants 5 flowers blue and white. 



Saxifraga. — A splendid class of plants for rock-work. The 

 common London Pride is well known. One of the best is 8. longi- 

 folia vera. 



Ivy-leaved geraniums, lobelias, dwarf nasturtiums, and several 

 other plants do well in a rockery, provided they do not crowd the 

 others. Ferns are excellent rock plants. I will note those suitable 



SEMPEEVIVUM AEACHNOIDES. 



lor the purpose in the papers treating on ferns, and will select a 

 few of the most suitable bulbous-rooted plants for window gardening 

 before I close this article. 



llyacintlus are particularly adapted for cultivation in pots, glasses, 

 and jardinets. The proper soil for them is composed of two parts 

 turfy loam well decayed, one part dry cow-dung well rubbed down 

 one part leaf-mould, and one part silver sand. This soil suits tulips 

 also, and snowdrops, crocuses, etc., with a little less manure. When 



July. 



