VINES FOR THE COOL HOUSE 175 
it to cover. A peculiarity of the vine is that, 
when a branch bears fruit, it loses all the character- 
istics of the plant, grows out from the support, 
develops larger leaves and shows no inclination 
to climb. In fact, one would never recognize 
it as a part of the original stem. 
A smaller-leaved variety is F. pumila var. 
minima, which I rather prefer for back walls, for 
the very small leaves, thickly set, make a very 
attractive wall cover. Both vines will attain a 
height of ten feet. They require a night tem- 
perature not lower than 55° in winter. 
For a house that cannot be kept above 45° 
in winter, the best flowering vine is the ever- 
green cross vine (Bignonia capreolata). The abun- 
dant, tubular, yellowish-red blossoms have given 
this vine the additional, though less common, 
name of trumpet vine. 
Differing from most vines, bignonia should 
have its root space restricted for best results. 
It is therefore often grown in a large box placed 
under the staging in the cool house. It must be 
fed freely when the flowering stems are growing. 
Heavy pruning is required and also a daily spray- 
ing except during the flowering period. To ward 
off the mealy bug, spray once a fortnight with 
a strong kerosene emulsion or tobacco decoction. 
