As a general rule we fertilize 3 to 4 times a year (Easter, Memorial Day, Labor Day, and
Halloween). If you choose to fertilize once, do it in the fall. If you chose to fertilize twice, do
it in the fall and spring.
Use a fertilizer that is blended for our Colorado soils like our ScienTurfic 20-20-10 with
An application around Halloween will feed your lawn during the winter months.
Yellow means the grass blades are not getting enough nutrients. Apply some fertilizer.
Revive can be used to help water penetrate into the soil. Remember to read the label for
The best way to control crabgrass is by applying pre-emergent herbicides. Read the label for proper
usage. Also, establishing a dense and
healthy turfgrass is the best way to control crabgrass and other annual weeds,
grasses and broad-leaf weeds.
No. Pre-emergent herbicides could harm newly formed roots.
Yes. Weed ‘n feed is an herbicide and fertilizer combination product that is used to kill weed
and feed the grass at the same time. Many feel if you have a weed problem, apply an herbicide.
grass needs nutrients, feed it with fertilizer.
Weed ‘n feed contains a pre-emergent which must be applied before weed seeds germinate.
It is important that you provide proper nutrition. Each year you don’t fertilize, the
the soil become further depleted.
Without fertilization, the grass is unable to handle the extremes of weather and to stand up to
insects and diseases.
Eventually, the soil becomes so infertile and your grass so weak, weeds begin to dominate.
They refer to the percentages of nitrogen, phosphorus, and potassium.
Nitrogen – growth, color, density and chlorophyll
Phosphorus – growth of new roots and rhizomes along with plant vigor
Potassium – Plant health, stress resistance, and cold hardiness
The lush green begins to fade. Over time the lawn thins and loses resiliency, which provides a
weeds, disease, and insects.
Over fertilization stimulates leaf growth at the expense of the roots. With a thin shallow
system the lawn can’t tolerate heat and drought. Over fertilization promotes thatch.
Iron. It is involved in chlorophyll production. A lawn that is deficient in iron turns yellow.
ScienTurfic Sod recommends a cyclone or rotary spreader. It will apply the granules more evenly,
avoids dark green and yellow strips that often happen with a drop spreader.
If the fertilizer contains iron, the pellets when wet will stain sidewalks, curb, gutters, and
Application rates are determined by multiplying the first number, which represents the
nitrogen contained, times the weight of the bag. Using the ScienTurfic fertilizer, which has a
formula of 20-20-10-2fe-3s, multiply the first number (20%) by the weight of the bag (20 lbs)
will equal 4 (lbs of nitrogen). If you want to apply 1 lb of nitrogen per 1000 square feet
will cover 4,000 square feet.
Not always. Let’s compare a 20 lb bag with the numbers of 20-20-10-2fe-3s and a 40 lb bag with
numbers of 10-5-5, both covering 4,000 square feet. Remember the total of the numbers
percentage of total nutrients in the bag. The 40 lb bag will contain 20% nutrients with the
being filler, while the 20 lb bag will contain 55%. 20% of 40 lbs will equal 8 lbs of
compared to 55% of 20 lbs which will equal 11 lbs. Obviously in this case the 20 lb bag is the
deal, if both were the same price.
In this example, it is the percentages of the 3 elements. Dividing these numbers by 10 leaves
The goal should be to produce reasonable amount of top growth but not at the expense of root
and carbohydrate storage.
This eliminates the danger of burning the grass blade. Of more importance it gets the
down to the roots so that it may be used by the plant.