14 HAND BOOK FOR THE GARDEN 
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sub-soil should be open so as to allow the roots to penetrate. Other- 
wise, the main root will branch. Set the root cuttings 12 to 18 
inches apart in the row and the rows 2 feet or more apart. It is 
usual to plant the cuttings 3 to 6 inches deep in a slanting position, 
the larger ends all pointing up. They should be cultivated frequently. 
KOHL RABI 
This belongs to the same class as Cabbage and Cauliflower. It is 
perhaps half way between the Cabbage and Turnip in that its edible 
part consists of a swollen stem of the plant. This thrives in a light, 
rich loam, manured the year before. Sow one-fourth ounce of seed 
per one hundred feet of row; two pounds of seed per acre; five feet 
per consumer. Sow May ist and every two weeks to July Ist, in 
rows one and a half feet apart, one-half inch apart in the row, one- 
half inch deep. When in the third leaf, thin to six inches apart, 
cultivating enough to keep the weeds down. They should be used 
as soon as they are fully grown while they are still young and tender 
and before the skin hardens, 
LEEK 
This plant belongs to the same class as does the Onion. It 
requires somewhat different treatment. Leeks can be grown on any 
good garden soil. Sow one ounce of seed per one hundred feet of 
drill; four pounds per acre. Sow very early in the Spring in drills 
one inch deep and eighteen inches apart. When six inches high, 
transplant four to six inches apart in the rows, setting the plants in 
the ground up to their center leaves and as they grow, draw the soil 
up around them. This process tends to bleach the Leek and improve 
the quality. The ground can hardly be made too rich, for the Leek 
is a gross feeder. 
LETTUCE 
Leaf Lettuce does best in a rich loam soil containing plenty 
of humus. Use three-fourths ounce of seed per one hundred feet of 
row; four pounds per acre; ten feet per consumer. To produce early 
crops plants may be started indoors or in hotbed and transplanted to 
open ground when danger from heavy frosts is over. Seed may be 
sown out doors when danger of severe frosts is over. Repeated sow- 
ings every two weeks insure a steady supply of this popular salad 
vegetable. Sow seed thinly, one-half inch deep in rows eighteen inches 
apart. Thin plants to six inches as soon as they begin to crowd. Be- 
cause this vegetable depends largely upon quick growth for its best 
qualities, the soil should be rich and well cultivated. 
Head Wettuce gives best results on rich soil and responds to 
thorough cutlivation. In arid sections watering should be frequent, 
so that the crop will not be stunted. Plants may be started indoors 
as in the case of Leaf Lettuce. When transplanted should be to rows 
twenty inches apart and at twelve to fifteen inches apart in the row. 
May be seeded to open ground when danger from heavy freezes is 
over in 20 inch rows, using about three pounds of seed per acre. 
Thin to twelve or more inches when second pair of leaves are the 
size of an oak leaf. All varieties head best in cool weather. 
