PLANTS WORTH GROWING 151 
able benefit. The doubles must be propagated 
from cuttings of the young growths, which should 
be inserted round the edges of pots of sandy soil 
and placed in a cold frame (in Autumn) or on slight 
bottom heat if taken in early Spring. 
Heuchera. — Neatness, extreme elegance, and subtle 
charm in both leaf and flower characterize the whole 
tribe of Heucheras. Scalloped leaves of green and 
bronze overlaid with an iridescent sheen are effective 
in Winter as well as Summer, and even the quiet- 
hued and tiny flowers of such kinds as hispida, 
micrantha, and the hybrid brizoides are charming 
for their lightness and grace. It is, however, the 
coral-red flowers of sanguinea that place the Heu- 
cheras among the most strikingly effective of border 
and bedding perennials, and since the introduction 
of a number of well-selected varieties which grow to 
a height of three feet or more, and bear larger 
flowers than the ordinary type, we may justly claim 
that there are few red flowers that equal in beauty 
and utility a modern variety of H. sanguinea. 
True, there is a similarity between the varieties 
which are offered under such names as Robusta, 
splendens, grandiflora, and other distinctive names. 
In some cases this has arisen through different 
growers securing and fixing seedlings of almost 
identical character, each giving their own selection 
a name. Soil and cultivation also have a good deal 
to do with the height and strength of the flower 
stems and the richness and lustre of the colouring. 
