340 ROCK GARDENS 



about 6 inches high. Leaves ciliated, small, and fleshy. Flowers 

 purplish-pink, solitar}', at end of branches. A difficult plant to 

 cultivate, but very pretty. 



RODGERSIA PODOPHYLLA (SaXIFRAGACEAE) 



Requires shady position in a rich loam and peaty soil. Large, 

 erect, palmate leaves, five-sected, of a bronzy-green colour, growing 

 from 2 to 4 feet high. The flowers yellowish, borne in spikes, are 

 inconspicuous. Propagated by division of its stoloniferous root- 

 stock. A good plant for bog garden. Deciduous. 



ROMANZOFFIA SITCHENSIS (HyDROPHYLLACEAE) 



Gritty soil in sun. Grows only 4 inches high, and has white 

 flowers in May. Is very like some of the Rockfoils. 



Romneya Coulteri (Papaveraceae) 



This shrubby perennial is better known as the Californian Tree 

 Poppy. Likes open, though sheltered position, in rich, sandy loam. 

 Grows 4 to 6 feet high. Glaucous leaves. Flowers pure white, 

 with yellow stamens. The petals are most beautifully crinkled like 

 tissue paper. It is not reputed very hardy, but will stand a good 

 deal of frost. Increased by division, but it should be carefully done, 

 as it rather resents disturbance. One of the most beautiful half- 

 shrubby plants that can be found for associating with the taller- 

 growing shrubs in the rock garden. 



Rosa (Rosaceae) 



Description of the Rose, the fairest of flowers, is unnecessary. 

 Besides the following dwarf-growing varieties, many of the new 

 Wichicriana hybrids, such as " Doj'othy Perkins" " Crunson 

 Ra7nbler" ^''Lady Gay^^ etc., will, if space permit, look lovely grow- 

 ing over some large rock or bank, while for the wild garden such 

 species as aciculaiis^polyantha, gd. Ji.^ rugosa hybrids, etc., would 

 look lovely falling over some craggy height. Of the dwarf kinds the 

 following are the best : — 



R. alpina. — Flowers single, pink or red colour. Grows about 

 2 feet high. 



R. al. pyrenaica. — Is a variety, but quite distinct. Of dwarfer 

 habit, and stems spiny. Flowers rosy-red. 



R. nitida. — Is also very charming, only growing 12 to 18 inches^ 

 high, with rosy-crimson flowers. 



