Crops Grown for Their Leaves 253 
Fic. 141. Head lettuce ready for transplanting. On the right a seedling pre- 
pared for transplanting by the ‘dirt ball’? method is shown. The earth in the 
flat is carefully compacted about the roots, thus preventing them from being 
broken. The plant at the left has been carelessly pulled and has little earth on 
the roots. This plant may grow so slowly after transplanting that it will fail to 
form a head. 
plants. In transplanting, keep roots intact in a large 
ball of earth. Transplant to the garden during cool, 
damp weather. In the garden, supply plenty of water if 
needed, and cultivate to maintain the earth mulch. 
Some of the round-headed types, as the well-known 
Big Boston, May King, Iceberg, Salamander, and Hanson, 
together with Trianon Cos Lettuce, should be tried. The 
crop should be used before hot weather, for then the 
plants shoot up into flowers and seed. 
Head lettuce makes an excellent part-companion crop 
with such a long-season crop as the tomato. 
SHORT-PERIOD COOL-SEASON LEAFY CROPS GROWN FROM 
SEED IN THE GARDEN 
Leaf lettuce, spinach, peppergrass, and mustard 
mature leaves so quickly during the cool weather of 
spring that seed may be sown in the garden where the 
