150 HARDY PERENNIALS 
varieties between the typical Lenten Rose, H, 
Orientalis, and other species. 
Hemerocallis. — The flower of a day, which fades 
before a second da\\Ti, manages in its brief spell to 
shed such radiance and glory that even were that 
one day the beginning and the end, the Day Lily 
would have a strong claim to our affections ; but the 
fact is that as fast as one blossom fades another 
opens, and we may have a grand display from May 
till September. There are varieties with golden- 
yellow flowers, some of rich orange, and some of 
terra-cotta and coppery orange. Some are dwarf, 
and some throw up stout strong flower stems to a 
height of four feet. All are easy to grow, and so 
long as they get some sunlight make themselves 
happy wherever they may be planted, 
Hesperis. — Under the homely name of Rocket, 
both the single and double forms of Hesperis Matron- 
alis have long been favourites in old country gardens. 
The single purple type is capable of grand effect in 
Spring if raised from seed and transplanted before 
it becomes hard and stunted. It likes a fairly rich 
soil with a good dressing of lime, and is best treated as 
a biennial. The double white Rocket is an extremely 
useful subject for cutting, but of late years stocks 
have become very scarce, chiefly owing to the 
ravages of a destructive black-leg fungus. A 
spraying with a solution of Sulphide of Potassium 
is a good cure and preventive of the disease, and 
a little powdered charcoal in the soil is of consider- 
