152 HARDY PERENNIALS 
Still, it is worth while getting a good variety rather 
than a common type, and if one cares to make a 
collection of varieties it will be found that several 
of them do show quite appreciable differences. 
Heucheras like a dry sandy soil in a sunny position. 
Transplanting should always be done in Spring, 
because autumn-moved plants are apt to rot during 
a wet winter. In some very heavy wet soils it is 
advisable to lift the plants each Autumn, divide and 
pot, keeping in a cold frame until Spring. Massed 
in beds, or in closely planted groups in the front 
of borders, Heucheras make a brave show and 
provide the daintiest of cut flowers for vases. 
Hieraceum. — For one reason alone we hesitate to 
recommend unstinted planting of Hieraceums — the 
plants are so commonly overloaded with aphides 
that they are not only themselves an eyesore, but 
a menace to other plants around. 
Hypericum. — There is a deal of beauty in both 
foliage and flowers of the Hypericums, the latter 
being invariably yellow, but ranging in size from 
tiny stars of half an inch diameter to large blossoms 
comparable in size to a dog-rose. In height and 
habit too they vary greatly, the tiny nummu- 
larium and close-growing humifusum snugging the 
ground, whilst the strong broad-leaved shrubby stems 
of hircinum reach a height of four feet, patulum 
sometimes exceeding this by another couple of feet. 
One of the most effective and generally useful is 
H. Moserianum, which makes a spreading bush of 
