22 
THE GRAND JUNCTION SEED CO., Grand Junction, Colorado 
Lettuce 
A valuable commercial crop when grown under 
proper conditions. Thousands of cars of Lettuce 
are shipped annually from the mountain states 
and California. A commercial acreage of Lettuce 
requires good, rich soil, no check in growth, care¬ 
ful weeding and thinning and cool weather during 
the heading season. These requirements must all 
be met to have a real success and to make big 
money from Lettuce. Soil can, of course, be fer¬ 
tilized to make it rich, but it is better to use a 
field which has been in alfalfa or some such soil¬ 
building crop, or the rich natural soils of the 
high mountain valleys. The growth must never 
be checked or the plants will quickly shoot to 
seed and the crop lost. Under irrigation the 
growth can be generally controlled by watering. 
Careful weeding and thinning give the plants the 
full advantage of the fertility of the soil and also 
plenty of room for the heads to form and develop. 
Cool weather is necessary at heading time; some 
varieties will stand hot weather, but the large 
heading varieties used by commercial shippers 
will not head in hot weather. In lower altitudes 
these varieties are only used as Spring and Fall 
crops and not used to head in. the Summer. 
Culture. One oz. to 100 feet of drill; 2 to 4 lbs. 
per acre. Mountain Iceberg and New York or Won¬ 
derful require only % to 1 lb. per acre. Lettuce is 
quite hardy and may be sown before danger of frost 
is over. The seed should be sown thinly in rows 18 
to 30 inches apart. When the plants have developed 
four leaves they should be thinned to 6 inches apart 
on the smaller varieties and 14 inches apart on New 
York or Wonderful and Mountain Iceberg. The qual¬ 
ity of the crop depends to a large degree upon the 
moisture conditions and the plants should never be 
allowed to become checked in growth for want of 
water. Any such checking is apt to cause many 
plants to go to seed or produce unmarketable heads. 
Head Lettuce requires frequent, shallow cultivation 
and plenty of attention, so that one man should not 
attempt to handle more than 3 to 5 acres. 
544 Special Strain New York. (80 days.) Our strain 
of this popular variety was grown on our Mile 
High Seed Farms at 5,000 feet elevation. We have 
never seen any finer, harder heads of Lettuce than 
those in our seed fields which we selected for seed 
last Summer. The field was thoroughly rogued so 
that you can bank on this seed .being absolutely 
true to type. Pkt, 5c; oz, 20c; V4 lb, 60c; lb, $1.65, 
postp&ida 
537 Special Strain New York (2-year-old seed). Pkt, 
10c; y 2 oz, 20c; oz, 30c; lb, 85c; lb, $2.40, postpaid. 
532 Mile High Wonder. (30 days.) This is a new 
strain of the New York type. We have experi¬ 
mented with this Lettuce for several years and 
find it to be far superior to the old type New York. 
It is more sure to head and is, not as subject to tip 
burn. The heads often attain a size of 6 to 7 inches 
in diameter, very solid and of excellent flavor. A 
good keeper. Pkt, 10c; y z oz, 20c; oz, 30c; y 4 lb, 
85c; lb. $2.50, postpaid. Not prepaid, 5 lbs, $10.50. 
545 New York No. 515. (80 days). Considered an im¬ 
provement over New York No. 12. Similar to it, 
but a brighter green and stands hot weather better. 
Heads smoother, slightly smaller with less promi¬ 
nent ribs. Also more resistant to tip burn in warm 
weather. Especially adapted to spring planting; 
not so good for fall planting in some sections, when 
it has a tendency to bolt under unfavorable condi¬ 
tions. Pkt, 5c; oz, 20c; % lb, 60c; lb, $1.60, postpaid. 
533 New York No. 12. (80 days.) A head lettuce of 
special merit. Very much like other New York 
types, but more sure to head in warm climates. 
Forms somewhat flat, exposed heads with rather 
light green, thin leaves. Pkt, 5c; oz, 20c; lb, 60c; 
lb, $1.60, postpaid. 
541 Mountain Iceberg. (80 days.) Very similar to 
New York or Wonderful. Our mountain grown 
strain of Mountain Iceberg is unexcelled for high 
altitude Lettuce growing. A hardy, rapid grower, 
deep rooted and drought resistant. Will stand in 
cutting condition for several weeks. Produces 
closely folded, solid heads, often weighing 2 or 3 
ibs. The inner portion is beautifully blanched to a 
creamy white. The heart is solid, sweet, tender 
and crisp. Pkt, 5c; oz, 20c; V4 lb, 60c; lb, $1.65, post¬ 
paid. 
542 Mountain Iceberg (2-year-old seed). Pkt, 10c; y 2 
oz, 20c; oz, 30c; *4 lb, 85c; lb, $2.40, postpaid. 
536 All the Year Bound. (60 days). You can plant 
this and have good table lettuce from the time it 
attains any size at all until it starts to go to seed, 
which it is slow to do. Formed nice, hard, medium 
sized heads during warm weather, and stood longer 
than any others in our trials. In short, it is just 
what its name implies, a lettuce for general home 
use. Buttery, sweet and tender at all stages. Leaves 
thick and somewhat crumpled, smooth edged; color 
clear medium green. Not a shipper, but a splendid 
home garden variety. Pkt, 5c; oz, 20c; *4 lb, 50c; 
lb, $1.50, postpaid. 
A field of seed lettuce in full bloom. 
