BIENNIAL AND PERENNIAL PLANTS. 32 



Autumn; others by bottom suckers and slips of top shoots, 

 layers, pipings of young shoots, &c. Pinks, SweetWilliams 

 Pansies and double Violets, also Periwinkle, or running 

 Myrtle, and many other similar plants, may be increased 

 by simply laying their branches an inch or two under the 

 surface in July and August. After roots have formed, 

 which may be expected in six or eight weeks, each tuft or 

 plant may be transplanted into the borders. 



Many sorts of Biennial and Perennial flower seeds may 

 be sown in September, or as soon as ripe ; and if the 

 plants get strong before the setting in of Winter, some of 

 them will flower the Summer next ensuing. The following 

 are amongst the hardiest : 



Adonis, Spring-flowering. Lychnis, in varieties. 



Alpine Columbine. Larkspur, perennial. 



Alyssum, yellow. Rose Campion, in varieties. 



Bee, larkspur. Rocket, in varieties. 



Columbine, in varieties. Scabious, in varieties. 



Evening Primrose. Valerian, Garden. 



Fox-glove, in varieties. Veronica. 



Fraxinella. Everlasting Peas. K,- K - „ 



tt 11 i i • • s \i' • ■> t>Z } climbing 



Hollyhock, m varieties. Virgin s Bower. $ 



It may be necessary here to remind the reader of those 

 species of beautiful double-flowering Perennial herba- 

 ceous plants, which do not produce seed ; some of these 

 are included in our Catalogue, they may be obtained at the 

 nurseries, and should be introduced into the regular flower 

 beds, either in Autumn or early in the Spring ; the mode of 

 increasing such, is by layers, cuttings, offsets, &c. detach- 

 ed from the old plants. 



As the earth within the flower beds will need to be 

 fresh dug and replenished with good compost or manure, 

 once in two or three years, it may be necessary to take up 

 all the Perennial plants at such times. Such roots as may 

 be overgrown, should be deprived of their surplus offsets, 

 and may be either planted in a nursery bed, or returned 

 with the parent plants into the regular flower beds ; they 

 should be inserted a little deeper than before, and the fine 

 fresh earth distributed well about the fibres. 



