Gardening for Amateurs 



563 



Dianthus glacialis, neglectus and alpinus 

 (Alpine pinks) ; Draba pyrenaica ; Edrai- 

 anthus pumilio ; Iberis gibraltarica (Ever- 

 green Candytuft) ; Leontopodium alpinum 

 (Edelweiss) ; Lithospermum Gastoni and 

 graminifolium ; Onosma tauricum and albo- 

 roseum ; Papaver alpinum (Alpine Poppy) ; 

 Pentstemon heterophyllus ; Santolina brachy- 

 phylla splendens ; Silene alpestris ; Thymus 

 montanus ; Tunica saxifraga flore pleno, 

 and Veronica Bidwelli are instances of choice 

 Alpines that thrive splendidly when estab- 

 lished in the dry wall. 



In addition to these are such favourites as 

 Aubrietia ; Alyssum alpestre, montanum, and 

 saxatile citrinum ; Anthyllis montana ; Are- 

 naria montana ; Armeria (Thrift) ; Asperula 



(Woodruff) ; Dianthus 



caesius, deltoides, fimbria- g^^KjHHHH 



tus, arenarius, graniticus, 



petraeus, and the large- 

 flowered single hybrid 



Pinks ; Dryas octopetala ; 



Erinus ; Gypsophila re- 

 pens ; Helianthemum (Sun 



Rose) ; Hypericum Coris, 



repens, reptans and fragile 



(St. John's Wort) ; Iberis ; 



Phlox amoena, verna, rep- 

 tans, and all the varieties 



of subulata (Moss Pinks) ; 



Saponaria ocymoides splen- 

 dens ; Sedums and Saxi- 



fragas of the silver and 



mossy sections ; Thymus ; 



and Veronica rupestris and 



incana. 



There are some plants 



that must be used with 



great caution, as when 



introduced among choicer 



kinds they are inclined to 



overrun them ; Cerastium 



tomentosum (Snow in 



Summer), Corydalis lutea, 



and Linaria cymbalaria 



are familiar examples. 



When the wall is of some 



extent, dwarf shrubs may 



be used here and there to 



break the wall-line, Olearia 



stellulata is very pretty 



when so grown ; others 



of merit are Genista horrida, radial a. pilosa, 

 prostrata, and tinctoria flore pleno ; Coto- 

 neaster congesta, rupestris, and adpressa ; 

 Cistus in variety ; and Cytisus kewensis 

 and Cytisus Beani. 



Flowers for a Shady Wall. When the 

 rock-wall is in shade the character of the 

 planting changes. Scolopendrium (Hart's 

 Tongue Fern), Trillium (Wood Lily), and 

 Lenten Roses are excellent for the foot of 

 the cool wall, while in the joints and courses 

 Asplenium trichomanes and nigrum, Poly- 

 podium, Ceterach, Polystichum (all ferns), 

 and flowering plants like Willow Gentian, 

 Ramondia, Haberlea, Erodium Reicheri, 

 Saxifraga longifolia, mutata, and the mossy 

 kinds ; Asperula hirta ; Hutchinsia alpina ; 



Houseleeks, Alpine Rose, and other flowers in an old wall. 



