Proper Plant Feeding Helps Grow Finer Plants 
Alin No No 
Elements Phosphorus Potassium 
Nitrogen Calcium Magnesium 
Copper Manganese Zinc 
Good seed of true strain and 
strong vitality is of first impor¬ 
tance in growing beautiful lawns 
and flowers. But even good seed 
cannot produce beautiful flowers 
you desire unless, after germina¬ 
tion, the young plants are able 
to secure elei^en plant food ele¬ 
ments from the soil. 
The photographs at the left 
show the results of a plant-feeding 
test conducted by a prominent 
midwestern university. One 
plant was fed eleven elements; 
the others were fed ten elements 
.. the eleventh element was with¬ 
held. Notice how the lack of just 
one element retards plant growth. 
The lack of one element in your 
soil, too, can ruin your gardening 
efforts. 
To enjoy greater gardening 
success be sure that your lawn, 
flowers, shrubs, and trees are 
properly fed. We recommend the 
use of Vigoro, the Complete Plant 
Food made by Swift especially 
for home gardeners. It contains 
all eleoen necessary plant foods. 
lOO-lb. bag $4.00 10-lb. pkg. $ .85 
50-lb. bag 2.50 5-lb. picg. .45 
25-lb. bag 1.50 l-lb. pkg. .10 
F.O.B. DENVER 
SEE PAGE 41 FOR ADDITIONAL INFORMATION ABOUT VIGORO 
