CROPS GROWN FOR FOLIAGE AND STEMS 



107 



FIG. 76. Celery banked with earth. 



one another. This is practiced only in exceedingly rich 

 ground. 



173. Cress is sometimes called pepper-grass on account 

 of its pungency. Cress is ^ 

 easy to grow. The seed is 



sown in the open ground, 

 and the plant is ready for 

 use in about six weeks. 

 It runs to seed rapidly in 

 hot weather. For a con- 

 tinuous supply, the seed 

 can be sown every two 

 weeks . Cress needs a plen- 

 tiful supply of moisture. 



174. Endive (Fig. 77). 

 This salad plant is 



grown from seed planted in June or July. It must be blanched 

 since otherwise the leaves are tough and bitter. The blanching 



is done by drawing the leaves 

 together and tying them at the 

 top. Endive should be used soon 

 after blanching as the inner leaves 

 rot if left too long. 



175. Lettuce. This widely 

 grown salad plant thrives on many 

 types of soils. Cool weather 

 and plenty of moisture are 

 favorable for its growth, although 

 much depends on the selection of 

 varieties. 



There are several types of 

 lettuce; namely, leaf (Fig. 78), 

 head (Fig. 79), and cos. Leaf lettuce is the most easily grown. 

 The seed may be planted in the greenhouse, or under glass, 

 or may be sown out-of-doors. The lettuce is ready for use 



Fia. 77. Endive. 



