fertilize > how to fertilize your lawn How to Fertilize Your Lawn
Feeding your lawn: Three Easy Steps
Step 1:
First measure your total lawn area and calculate the square footage (length x width = square footage).

The bags of 16-16-16 that you can buy from Greenhorizons weigh 55 lbs. and will cover 6,500 sq. ft. So if you need 26 lbs.. use about 1/2 the bag. If you need around 40 lbs. use 3/4 of the bag and so on.
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Step 2:
If you’re using our 16-16-16 mix you won’t need as much. The right amount is applied at 8 lbs. per 1,000 sq. ft. Take your total square footage and divide by 1,000. Then multiply by 8. This is how many pounds of 16-16-16 you need to fertilize your whole lawn.
Step 3
Now you can begin spreading. Divide the calculated amount of fertilizer you need in half. In a criss-cross pattern, spread one half in one direction and the second half in the opposite direction.
Quick Guide: 16-16-16 Fertilizer

Set spreader very low. It’s better to go over an area a second and third time rather than run out of fertilizer before you get the whole lawn covered.
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The amount and type of fertilizer for any lawn depends on the fertility of the natural soil, the degree of growth you want, available irrigation or natural rainfall and the type of grass that you are growing. Having said that, buying the right fertilizer can be a very confusing, scientific process. That’s why we suggest GreenThumb™ 16-16-16. Based on our climate and growing conditions, this provides an excellent well-balanced feeding for your lawn for any season.
The "Meat and Potatoes" for your lawn. This non slow release fertilizer is the most important ingredient to having a healthy looking lawn all season long. Apply it 3–4 times a year just before a rain in the beginning of every season.
Summer application needs to be done before it turns dry! Mid-to-late June.
Establishing NEW lawns
Professional Seed and Sod Starter like 8-32-16 and 10-25-10 are good because new SEED or SOD thrive on high phosphorous fertilizers (middle number) while too much nitrogen (first number) could burn the new roots if not careful.
Step 1:
Prepare the Soil by removing existing weeds, grasses and debris.
Step 2:
For a light loose seed bed, cultivate the soil to a depth of 6 inches. This is an ideal time to add organic matter. Cover the desired area with a 2 inch depth of GreenThumb™ Black Garden Soil and work it into the 6 inches of soil.
Step 3:
Incorporate “Professional Seed & Sod Starter” fertilizer into the prepared seed or sod bed and carefully follow the directions on the bag.
Step 4:
Now your soil is well prepared for the SEED
Quick Guide: 8-32-16 and 10-25-10 Fertilizers
The perfect seed and sod starter fertilizer. Use to establish new sod or a freshly seeded area. This fertilizer is high in phosphorous (middle number) which promotes root growth.
- One bag of 10-25-10 will cover the area of one skid of sod
- 8-32-16 available in 25 kg / 55 lb. Bags
- 10-25-10 available in 2 kg / 4.4 lb. Bag
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