394 
THE FLOWER GARDEN, 
positions where their flowers can be readily seen in winter. 
Plant in autumn. Any pruning that is needed should be done 
directly after flowering. Increased by layering the shoots in 
early autumn. 
Helianthemum (Sun Rose). — Dwarf evergreen shrubby 
plants, belonging to the Rose family (Rosaceae), and very 
showy subjects for growing on dry sunny rockeries or banks. 
One species, H. vulgare, grows wild on dry sunny banks in 
England. From this species a large number of varieties 
bearing single and double flowers have been obtained, as : 
Carminatum plenum, double red ; coccineum, crimson, single ; 
Golden Queen, single, yellow ; Mrs. C. W. Earle, double, 
crimson ; Sulphur Gem, sulphur yellow, single ; Double 
Orange ; Double White ; Double Yellow ; and Double Rosy Buff ; 
croceum, yellow, single ; and Amabile, orange and rose, single. 
Many others will be found described in hardy plant lists. 
These form neat, spreading tufts a few inches high, and flower 
profusely throughout the summer. The individual flowers do 
not last long, but there is a constant succession of fresh ones 
to take their place. Grow in ordinary light soil and plant in 
autumn or spring in the positions above named. Increased 
by cuttings of shoots inserted in sandy soil under a hand- 
light in a shady spot outdoors in summer. 
Hibiscus (Syrian Mallow or Rose of Sharon). — Hardy 
deciduous flowering shrubs, natives of Syria, and members 
of the Mallow order (Malvaceae). The only shrubby species 
is H. syriacus, formerly known as Althaea frutex, the others 
being hardy annuals or perennials. This species grows 6 to 
8ft. high, and the flowers of the type are purple, spotted with 
crimson. There are, however, a number of double and single- 
flowered varieties which are exceedingly beautiful, the most 
striking being albo plena, double white ; caerulea plena, double 
blue; carnea plena, double red; lilacina plena, double lilac; 
rosea plena, double rose ; totus albus, single white ; and 
Celeste, single blue. These beautiful shrubs require to be 
grown in a warm sheltered position and in a rich sandy loam. 
They are scarcely hardy enough for outdoor culture, except in 
the South and West. Plant in autumn. Require no pruning 
except to remove dead wood in winter. Increased by cuttings 
of firm shoots in peat in summer, also by grafting on common 
species in early spring. 
Hydrangea. — Hardy deciduous flowering shrubs, 
natives of China and Japan, and members of the Saxifrage 
order (Saxifragaceae). The two principal species are H. hor- 
tensis and its varieties and H. paniculata. There are one or 
