Milorganite is the fertilizer of choice for golf courses, professionals and homeowners who trust in the long-lasting results of organic nitrogen. Milorganite releases 85% of its nitrogen slowly as your turf grows, generating balanced growth. Each application feeds for 8-10 weeks, so you fertilize less often while still providing everything your growing plants need. You can’t mess up the application because Milorganite's salt free formula won't burn your lawn.
It is great for spring fertilization when excessive rain + nitrogen promotes fungal growth or summer fertilization when drought + too much nitrogen can stress the grass. It will not burn the turf, as grass is fine when I mis-calculated and applied 2X more the fertilizer in one area for my summer fertilization. Unlike the other iron supplements, It definitely will not stain the concrete.
Pros: Eco-friendly, never burn, never stain, 4% iron
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