1 1 2 Subtropical Gardening. 



during the growing season. It is generally seen in a 

 small state in this country ; and though it stands the 

 open air in summer, from June till the end of September, 

 pretty well, it can never be of much importance for our 

 open-air gardening. 



*Cassia marilandica. A hardy, graceful perennial, 

 3^ ft. to 5 ft. high, with pinnate leaves, resembling those 

 of the -Acacia, and slender stems, bearing yellow flowers, 

 in numerous small clusters in autumn. It is somewhat 

 late in growth, but once commenced, grows with great 

 rapidity. It thrives best in a position with a south 

 aspect, and may be multiplied either by division in 

 spring, or by sowing from April to June. It should 

 always be planted in a warm, deep, sandy loam, and is 

 very suitable for borders or association in groups with the 

 finer hardy subjects, its graceful leaves qualifying it for a 

 place in a group of hardy foliage-plants. In naturally 

 warm, deep, and well-drained soils it will prove a noble 

 subject for the back parts of borders. N. America. 



*Centaiirea babylonica. Among the Centaureas 

 there are a few subjects which might be used among 

 hardy fine-leaved plants, but by far the most distinct and 

 remarkable is the very silvery-leaved C. babylonica. This 

 is quite hardy, and when planted in good ground, sends 

 up strong shoots, clad with yellow flowers, to a height of 

 10 ft. or 12 ft. The bloom, which continues from July 

 to September, is not by any means so attractive as the 

 leaves; but the plant is at all times picturesque. In 

 groups, or, still better, isolated, on rough or undulating 

 parts of pleasure-grounds, it has a very fine effect. A 

 free sandy loam suits it best. Seed. Levant.. 



