THE ROCKY MOUNTAIN SEED CO. 
DENVER, COLO. 
59 
Hardy Grass and Field Seeds 
PERFEGRO BRAND GRASS AND FIELD SEEDS are specially recleaned and tested for purity and germination before 
shipping. If desired, we will send you samples and advise you what the purity and germination test are of any of the 
Grass or Farm Seeds. 
Prices on Alfalfa Seed Quoted on Refines! 
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Alfalfa 
NITRAGIN -i 
on 
ALFALFA 
The won- ; j 
CULTURE—Alfalfa Seed may be sown either in spring or fall at the rate of 12 to 20 pounds per acre. Sow with 
oats, barley or other grains as a nurse crop, sowing only about half the amount of grain per acre, so that the grain will 
not be too thick to smother out the alfalfa. 
Alfalfa is the great hay crop for America and can be successfully grown in many localities. Alfalfa is of two types, 
the Domestic or Common which has a long tap root which penetrates into the soil for a distance of 8 to 10 feet and 
the Grimm Type, which has a spreading root system. The Grimm type is considered the hardiest although on certain 
soils and in certain localities the Hardy Common varieties will stand extremes of heat and cold equally well. All our 
Alfalfa Seed is especially selected for Adaptability and Hardiness. 
DOMESTIC ALFALFA —Fancy Domestic High Altitude 
Seed. Hardy anywhere, high purity and germination. 
DOMESTIC ALFALFA (Dry Land Grown)— Grown in the 
dry plains region without irrigation. Very hardy and pro¬ 
ductive. 
GHIMM ALFALFA (lilac Tag Grade) —State Sealed and 
Certified Seed. Grimm Alfalfa is the hardiest of the 
hardy alfalfas and differs from the domestic or common 
variety in that it has a spreading root system instead of 
the long tap root which is sometimes broken when the 
ground bulges, during the spring freezes, thus causing 
the plant to die. Highest grade seed. 
GllIMM ALFALFA (Growers’ Affidavit Seed) —This seed 
is as good and pure and will produce as much fine hay 
per acre as the certified seed. The grower makes affi¬ 
davit that it Is genuine Grimm Seed. 
SPECIAL ALFALFA NO. 10 —This is a combination con¬ 
sisting of about 4 0 per cent of Grimm Type Seed and 
l>alance of Hardy Common Seed. This is an excellent 
mixture where a heavy yield of hay is desired. Not 
recommended for sowing for a seed crop. 
LADAIv —This is a new wilt-resistant variety; it is slow 
to start in the spring but makes up for lost time as the 
season advances. It yields as well as common alfalfa 
and will hold a stand from one to two years longer. 
Supply of seed is very limited. 
ARGENTINE ALFALFA -Owing to the shortage of domes¬ 
tic grown alfalfa seed this season we have a supply of 
Imported seed from Argentina. This is of the common 
variety and is adapted for planting in most sections 
excepting possibly the northern section. This seed is 
stained 10 per cent Orange Red to meet government 
regulations as to its origin. 
Clovers 
ALSIKE OR SWEDISH CLOVER -Grows well on low. wet 
land where Red Clover does not thrive. Alsike being a 
perennial, will last for a good many years, either for 
hay or in pasture. It makes fine hay of high feeding 
value. It is very valuable in pastures, especially on wet 
or heavy soil. Sow 0 to 10 pounds of seed per acre if 
used alone. 
LESrEDEZA (Korean Clover) —Korean Lespedeza is an 
annual Legume with very fine stems. In general ap¬ 
pearance it resembles Alfalfa. It grows about 15 inches 
high. Where the stand is scattered the plants branch 
profusely. Where the stand is thick the plants have an 
upright growth like Red Clover or Alfalfa. Lespedeza 
grows on poor soils and increases the fertility as well 
as improves the physical condition of the soil. It is an 
annual but will reseed itself each year so that only one 
sowing is necessary for a permanent pasture. For pasture 
about 8 pounds of seed is required per acre. On tilled 
land for hay or for a seed crop 10 to 12 pounds per 
acre should be sown. Korean Lespedeza is palatable to 
all classes of live stock, particularly cattle. It will stand 
close grazing by cattle and still set enough seed to main¬ 
tain a stand. 
RED CLOVER ( Mammoth) —Also called “Pea Vine’’ Clover. 
This variety grows larger and coarser than the Medium 
and is often used for plowing under to enrich the soil 
for which purpose it is very valuable. American grown 
seed. 
RED CLOVER (Medium) Colorado-grown seed. This is the 
common Red Clover, so extensively grown. It is a bien¬ 
nial in most places, living but two years if allowed to 
seed. It is usually sown early in the spring on winter 
wheat or with oats or barley, hut can he sown in July 
or August quite successfully. Sow 8 to It pounds per 
acre. The seed we offer is the highest grade. 
SWEET CLOVER -The culture of sweet clover is practi 
caliy the same as for alfalfa. Sweet clover, however, will 
grow on rough land where alfalfa would not do well. It 
makes an immense growth and if cut before it is too 
ripe makes excellent hay. Tt is also valuable for pasture 
for hogs, sheep and cattle. Like Red Clover this is a 
biennial and should be renewed every other year. The 
seed may be sown in the late fall and winter, or early 
spring as well as in the summer. For summer sowing 
use scarified seed. Seed not scarified germinates slowly 
and often lies in the ground a long time without sprout¬ 
ing. Sow 12 to 20 lbs. per acre. 
VKLLOW BLOSSOM SWEET CLOVER- is a biennial like 
the White Blossom Sweet Clover and differs from that 
variety only in (hat it is ten days earlier. Does not grow 
as tall, is more spreading in habit, makes liner ha> or 
pasture. 
Prices on Field Seeds Quoted on Request 
