182 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Introducing the Seeds. 



The seeds should be mixed with moistened soil, and soil of a slightly 

 stiff natm-e by preference, for the light soils quickly crumble and give out 

 when the least dry. More or less deep and long crevices should be made, 

 so that the seed-oharged soil may be safely inserted where desired. For 

 example, if a display of Snapdragon was desired, a crevice of several feet 

 long would be made on the face of the wall, and another a foot or more 

 higher up, to thus create a group, and, of course, crowning the summit 

 wdth the same thing, which should be of one colour only. Then the seed- 

 charged soil may be inserted deeply enough for its safety, and finally faced 

 up with a little plain soil. This is done as a precautionary measure, and 

 though the seedlings may be a little longer in getting through, they cer- 

 tainly obtain a firmer footing in the end. 



But whether it be seeds or plants, this much must ever be borne in 

 mind, that the better the structure from the mason's point of view, the 

 greater the difficulty for quickly establishing plants ; and in the better 

 class of walls and dry walls in particular nothing short of unceasing 

 care and attention in keeping the surroundings moist is likely to bring a 

 full measure of success. Finally, I would say plant freely and thickly, 

 and regulate at a later period when growth appears. 



The following are some plants that can be recommended for the 

 purpose, but, as I have previously hinted, the number may be increased 

 indefinitely according to the provision of the structure and the wish of the 

 owner. Following the names in the subjoined list the letter " S " 

 signifies that seeds are to be preferred, and P " that plants are usually 

 best. When both are seen it implies that seeds or plants may be used. 

 In all cases, however, young plants, either seedlings or rooted cuttings, are 

 best, and, of course, plants easily broken up with roots attached answer in 

 a similar way : — 



Alyssum saxatile . . . 



S. 



Sedum and Sempervivum . 



P. 





S,P. 



Dianthus in variety . . . 



S.P. 



Achilleas (dwarf) .... 



P. 



Tunica Saxifraga . . . 



S.P. 



Thrift 



SP. 



Alpine Phloxes .... 



p. 



Alpine Poppies .... 



s. 



Small Ferns, as — 







s. 



Ceterach officinarum . . 



p. 





s. 



Asplenium riita-inurari(( 



p. 



Crusted Saxifrages . . . 



p. 



,, tricliomanes 



p. 



Saponaria ocymoides . . 



s. 



Helianthemums .... 



p. 



Dry as octopetala . . . 



p. 



Euphorbia Myrsinitcs . . 



p. 



Valeriana coccinea . . . 



s. 



Iheris (Candytuft) . . . 



S.P. 



Crucianella stylosa, var. . 



p. 



Campanula muralis . * 



p. 



Zausclmeria calif ornica . 



S.P. 



„ pumila, vars. . 



p. 



Corydalis capnoides lutca . 



s. 



,, garganica „ . 



p. 



Dwarf Columbines . . . 



s. 



,, isophylla . . 



p. 





s. 



alba 



p. 





S.P. 



„ frag His . . . 



p. 



Thymus lanuginosus . . 



p. 



„ Tenor ei . . . 



p. 





p. 



„ Waldsteiniana 



p. 



