The Cultivation of Flowers 
189 
producing in May large numbers of branching cymes, 
covered with fine blue flowers. Height, from 2 to 3 in. 
Papaver nudicaule. — Exquisite little Poppv with 
flowers of a golden colour. Height, about 12 in. 
Phlox frondosa. — A prostrate-growing plant, with 
an abundance of pink flowers which are produced in 
May. 
Potentilla aurea. — Very dwarf, with large golden- 
coloured flowers. 
Height, 6 in. 
Primula, and 
its many varieties, 
many of which are 
splendidly suited for 
rock plants. The 
coloursof theblooms 
range from white, 
pink, purple, to ma- 
genta and crimson. 
Height, from 3 to 
18 in. 
Ranunculus al- 
pestris. — A dwarf 
mountain Buttercup 
with white flowers. 
Height, 3 in. 
Saxifraga. — A 
genus of plants ^ . r 
° . r Saxifraga 
which has many 
species especially adapted for the rockery. Some of them 
form moss-like plants which grow very rapidly, covering 
