March'] HARDY BIENNIALS. 37 



Phlox subulata, and Plox procumbens, all make tolerable 

 edgings, In the Southern States, Euonymus Japonica, kept 

 closely sheared, will make a very handsome green edging. 



HARDY BIENNIALS. 



Biennial plants are such as are of two years' duration 

 Being sown this year, they flower, seed, or fruit next year, 

 and soon after decay : the seeds should be sown about the 

 end of this month or beginning of next, either in the spot 

 where they are to remain or a compartment by themselves, 

 regularly marked, and to be transplanted in May or Septem- 

 ber When they appear above ground, thin them out dis- 

 tinctly, that, when they are to be removed, a little earth may 

 adhere to them : and if sown where they are to stand, leave 

 only three or four plants in each patch. The following list 

 are a few of the free-blooming and more elegant sorts : 



Agrostemma coronaria, Rose Campion, blooms all summer. 

 Althea rosea, Hollyhock, and all its varieties, very showy in 



July and August. When any very desirable variety 



is procured, it can be multiplied by dividing the root. 

 Antirrhinum majus, Snap-dragon, and its varieties, require 



to be protected during winter with a few leaves or 



litter. 

 Cantua coronopifolia, flowers in August and September, 



beautiful scarlet, delights in dry gravelly soil 



Ipomopsis eleyans. 

 Campanula media, dark blue Canterbury 



bell, 



Campanula media, semi-pleno, half double 

 Canterbury bell, 



Bloom in June 

 and July. 



Campanula media, alba, white Canterbury 



bell, 



Campanula thyrsoides. 

 Cheiranthus cheiri, Wall-flower, should be protected by lea\e# 



or boards during winter. 

 Digitalis purpurea, purple Foxglove. 



alba, white Foxglove. 



Digitalis guttata, spotted Foxglove. 

 Dianthus burbatus. Swe?t William, p ; nk 

 4 



