RHUS, RIBES, ROBINIA 495 



color of their foliage in early Fall. Rhus lyphina, the graceful Stag- 

 horn Sumach, makes a fine specimen for the shrubbery border. 



RIBES ALPINUM (MOUNTAIN CURRANT) 



Not only this Mountain Currant, but also the larger, yellow- 

 flowering species, R. odoralum and the red one, R. sanguineum, are 

 all desirable shrubs, especially for shady positions. To see them at 

 their best and as in R. odoratum the plants literally covered 

 with sweet-scented flowers in early Spring, you want to plant them 

 in full sun. But there are occasions when you want a shrub in a 

 shady spot where almost everything else has failed to grow. These 

 Currants will help you out and for that reason you want to know 

 more of them. And who hasn't shady positions to be planted ? 



RICINUS (CASTOR BEAN) 



The Canna bed with the Castor Bean in the center is a thing 

 of the past, and we have only very few calls for the latter plant. Yet 

 it is highly ornamental for the filling of large beds or for sub- 

 tropical plantings. The variety R. zanzibarensis enormis, will grow 

 fifteen feet high during the Summer and bear great leaves, but you 

 must start seed in early February in order to have plants eighteen 

 inches high in 5-in. pots by the end of May. This is about as early 

 as you can risk them outdoors as they will not stand frost. 



ROBINIA HISPIDA (ROSE ACACIA) 



If your customers are in want of something beautiful in the 

 way of a small tree to be planted as a specimen on an open lawn 

 or in a border, recommend the Rose Acacia. You can obtain speci- 

 mens grown in standard form and worked on Robinia Pseudacacia. 

 The standards come with from 4- to 6-ft. stems and the tops are 

 loaded each Summer with hanging racemes of deep salmon-pink, 

 pea-shaped flowers. Frequently they will bloom a second time. 

 The plants are perfectly hardy and each Spring should have 

 a good pruning. Care should also be taken not to allow growths 

 from the base to remain; if left they will in time ruin the top. We 

 have had these standards live and thrive for years, and even when 

 out of bloom the Locust-like foliage makes them attractive trees. The 

 Rose Acacias come also in bush or shrub form, but for the small 

 grounds the standards are best. 



ROCK CRESS ROSE ACACIA 



See Aubrietia See Robinia 



ROCK ROSE ROSE OF SHARON 



See Helianthemum See Hibiscus 



