PLANTS WORTH GROWING 
147 
undisturbed, for it makes long fleshy thong-like 
roots which do not take kindly to disturbance with 
its inevitable breakages. A soil impregnated with 
chalk or lime suits the plant 
best, but it is not over-fas- 
tidious. The double variety 
is best propagated by grafting 
young shoots on to seedling 
roots of the single type. Simply 
sever the shoot from the plant 
when about three inches long, 
strip off the lower leaves and 
cut a thin slice of bark from an 
inch of one side. Cut the crown 
from the seedling root and a 
slice of the bark to correspond 
with the cut on the scion. 
Place the two cut surfaces evenly 
together and bind neatly with 
raffia. Pot the roots, and place 
on very slight bottom heat. In 
less than a month the young 
grafts should be growing freely. 
There are several other 
species of Gypsophila, but pani- 
culata is the most popular and 
generally useful. 
Helenium. — Among the members of this genus 
we get some of our showiest golden flowers of Autumn, 
H. autumnale and its varieties are fine with their 
Seedling Root of 
Gypsophila Paniculata 
grafted with scion of 
THE Double-Flowered 
Variety, 
