26 BIENNIAL AND PERENNIAL FLOWERS. 



risk and trouble. Such kinds as are marked in the cata- 

 logue* may remain as sown, or if parted, they should be 

 removed with a scoop trowel in a careful manner, in small 

 tufts, and. this business, as well as transplanting in general, 

 should be always done immediately preceding, or after rain, 

 and in cloudy weather. 



Herbaceous plants in general will not flower well, if grown 

 in clusters; they should, therefore, be thinned or trans- 

 planted into the regular beds, at all favourable opportuni- 

 ties, after they get about an inch in length ; and as there is 

 always a risk of some plants not taking root, it is safest to 

 plant a few of each sort every time, taking care to diversify 

 the colours, and also to leave a few plants in the seed beds, 

 for the purpose of substituting in the room of such plants 

 whose period of flowering may be over ; as is the case gene- 

 rally with early Perennial plants and bulbs, at about the 

 season that the last of the Annuals are fit to remove. 



The transplanting may be done with a small trowel, or a 

 neat dibble made for the purpose. 



PRELIMINARY OBSERVATIONS 



TO THE CATALOGUE OF 



BIENNIAL $ PERENNIAL FLOWER SEEDS. 



The remarks preceding our Catalogue of Annuals, will 

 with few exceptions, apply to that of Biennials and Peren- 

 nials ; and it may be observed further, that the circulation of 

 the sap in roots and stalks of plants, is influenced by like 

 causes, and subject to the same vicissitudes as the germin- 

 ation of seed, which principle is exemplified by some plants 

 of various species putting forth their leaves and flowers at a 

 later period than others in the same location, as if waiting 

 for nature to replenish the earth with food adapted to their 

 respective requirements ; which by the gradual change* 



