Area of the yard is:
- From north of azaleas to the fences: 56K SF
- minus driveway and house ~7K SF
- Total to fertilize = 49K SF
The Plan – ACES says here for a low maintenance lawn apply 1/2 lb. nitrogen per 1,000 SF three times per year. So to get 0.5 lb nitrogen with 15-0-15 would equate to: Amount of Fertilizer = (0.5 lb per 1,000 SF)/0.15 = 3.33 lbs of 15-0-15 per 1,000 SF. At 3.33 lbs/1K SF for 49K SF need to spread 163 lbs of 15-0-15. So, spread 3-50 lb. sacks.
What was done – The 15-0-15 had lumps despite our trying to crush all of them. With the spreader set on 2 (higher than it should have been) it was continually getting clogged with the lumps. Spread about 120 lbs on the yard in multiple passes in different directions all the while opening and closing the cut off to try and keep it flowing.
Next Time – Pour the bags into the wheelbarrow and be sure there are no lumps before putting into the spreader.