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The Tricolor or Minor Convolvulus may either be suffered to 

 trail upon the ground, according to its natural growth, or tied up to 

 sticks: but the other annual species and varieties, being of the twin- 

 ing or running kind, should have tall sticks to climb upon, on which 

 they will rise several feet in height, flowering all the way, and ap- 

 pearing highly ornamental. 



The perennial sorts are elegant plants for the greenhouse collec- 

 tio.i, and deserve the attention of those who can preserve them dur- 

 ing the winter season. 



The la>l species may be raised by planting the roots, either whole 

 or divided, in a warm border, in the early spring months, where they 

 will send up stalks, and flower in the autumn ; but to have them in 

 greater perfection, they should be planted in a slender hot-bed, co- 

 vered with a frame ami glasses during bad weather, by which means 

 they flower earlier, and often form many tubers at the joints. They 

 are chiefly planted for the sake of variety. 



