POT-HERB 
137 CROPS 
spinach is sown lengthwise of the beds 12 to 
18 inches apart, according to the sort of tillage 
to be used. 
CHARD. 
One of the best of the pot-herbs, though not 
so generally known, is the chard or leaf-beet, 
which usually requires the whole season to 
mature, although it will give a succession of 
leaves from early summer until fall. The leaf- 
blades and midribs of the chard are very broad, 
and are usually white or slightly tinted, in- 
stead of green. Gardeners often blanch them 
further by tying the leaves together while 
growing. The seeds are sown in the spring as 
thickly as the ordinary beet is sown, and the 
plants are thinned until they stand six to twelve 
inches apart in the row. 
MUSTARD. 
Mustard is cultivated more cxtensively in 
the South than in the North, as it will grow 
where the climate is too hot for other greens. 
In the North it is usually grown only in home 
gardens for family use; the plants run to seed 
in midsummer, so seed must be sown very early 
in the spring. They are ready for use in May 
or June. Some of the new improved varieties 
