472 MANUAL OF GARDENING 
When the heads begin to form, the outside leaves may be brought 
together and tied above the head, excluding the direct sunshine and 
keeping the head white and 
tender. Fig. 301 shows a 
good head. 
No vegetable will respond 
more quickly to good culture 
and well-manured soil than 
the cauliflower, and none will 
prove such an utter failure 
when neglected. It is im- 
SSS 3 perative that care be taken to 
301. Cauliflower head with leaves trimmed destroy all the cabbage worms 
off. before the leaves are tied in, 
as after that it will be impossible to see or reach them. From 1000 to 
1500 plants may be grown from 1 ounce of seed. Good cauliflower seed 
is very expensive. 
For winter crop, seeds may be started in June or July, as for late 
cabbage. 
Erfurt, Snowball, and Paris are popular early varieties. Nonpareil 
and Algiers are good late kinds. 
Celeriac.— A form of the celery plant in 
which the tuberous root is the edible part 
(Fig. 302). The tuber has the celery flavor 
in a pronounced degree, and is used for 
flavoring soups and for celery salad. It may 
be served raw, sliced in vinegar and oil, or 
boiled. 
The culture is the same as given for celery, 
except that no earthing or blanching is re- 
quired. About anequal number of plants are 
obtained from the same weight of seed as from 
celery seed. Celeriac is extensively used 
abroad, but, unfortunately, little known in 302. Celeriac or turnip- 
America. rooted celery. 
Celery. — Although celery has now become a staple vegetable with all 
