MAY 



IRISH GARDENING. 



75 



Walls 



Notes 



for Rock Plants. 



In my notes on this subject in last number I oug-ht to 

 have added that, even without preparation, anj' 

 wall not quite new, not too well built, mj,y be 

 utilised for the g:rowth of rock plants with very pleasing 



the walls, and have formed a number of colonies : — 

 Erinus alpinus, Dianthus caesius, Tunica Saxifragfa, 

 Sedum album, S. anopetalum, S. dasyphyllum, S. glau- 

 cum, S. rupestre, S. sexangulare. Other plants have 

 formed large tufts equally or more healthy than those in 

 the garden — such as Sempervivum californicum, S. 

 tectorum, and others ; Alsine Rosani, Sedum Maximo- 

 wiczii ; a few others, such as Aubrietiadeltoidea, Draba, 



A \'erv Pretty Wall Pi ant. 



The above illustration is a photograph of Erigeron mucronatus growing in a wall at I.issadell, Co. Sligo. As may be observed, 

 this variety is well suited for such situations, and as it is very free-flowering it presents a charming picture when in full bloom. The 

 flowers are pink in colour, small and daisy-like. The genus Erigeron affects cold and mountainous countries, and are of easy 

 culture so long as they can get moisture, but not stagnant moisture. There are very few varieties, however, worth cultivation. 



effect. The wall surrounding my own garden was built 

 five years ago ; it is five feet high and eig;hteen inches 

 thick, built of limestone, and finished off on top in a 

 rounded fashion. The wall, like the garden, is dry and 

 sunny. By good luck (bad luck according to the 

 builder!) a sharp frost came on just as the top was 

 finished, with the result that the mortar never set 

 properly, and can to some extent be dug out with a 

 trowel or knife. Into chinks and little hollows many 

 small plants have been fitted, sometimes with a little 

 earth, sometimes merely by lifting slig-htly one of the 

 smaller stones, slipping- the root in, and pressing down 

 the stone again. Almost all the species so planted have 

 grown excellently. The following are spreading along 



aizoides, Armeria plantaginea, Artemisia pedemontana, 

 Sedum Ewersii, while holding their own have not yet 

 made much progress. R. Lloyp Praeghr. 



Verbenas. 



To those who have grown verbenas, nothing 

 need be said as to their beauty and usefulness in 

 the flower garden, but to amateurs of limited 

 knowledge and experience the verbenas will prove on 

 trial an altogether delightful race of decorative plants. 

 The flowers are produced on terminal heads, sometimes 

 crowded and sometimes loose, but always beautiful. 

 The range in colour is very wide ; you may get, in fact 



