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[Updated] Don't pay attention to any pre-July 4-7 reviews.
I've ordered a bag to replace my typical early-July Milorganite/Ringer application to compare. I'll update this review in a few weeks once the goods have had some time to work, and that's key - you can't review a fertilizer before it is even on the yard. Now, that doesn't mean I don't expect great things, I certainly do. I'll adjust my rating once I can check out the results (and actually get the product) since every item on here should start with a one-star and earn the rest.
Edit: 7-9-19 - Application was very pleasant, prill size is good for a larger spreader, but it's a bit harder to keep track of with your eye. Spread pattern was about a foot wider than typical SeaHume/Milo/synthetic. Laid down an entire bag for 4,000 square feet (a little less than 3/4 pound of nitrogen per 1,000) with about 1/4 inch of water supplemented by some afternoon rain for the bi-weekly irrigation. I'll update in a few days.
Edit: July 13 - Somewhat decent green up, but not comparable to most other iron supplements, which is to be expected. I have gotten a flush of top growth requiring mowing every 2 instead of every 3 days to keep the lawn at 2 inches, probably an effect of the quick release nitrogen portion in an otherwise slow release lawn. Likely not enough time to judge spread, but I'm interested in seeing how long it will push. The accelerated top growth is concerning (i.e. somewhat wasted) when compared to some liquid nitrogen products I've used with higher concentrations that did not push to the same extent on top. Overall, at least one more update to come, but this is not the best value for a large lawn. At 4,000 squate feet, I can splurge on a new product that can cover in one bag if I want to stick a toe in, but if I had to buy two or more, I don't think I would keep this on the regular rotation when you compare price to what you get.
Edit: 7-16-19 - Green up is fading pretty quickly, but we've had some good rain lately. Top growth is still pushing hard, but I'm still waiting to see some lateral movement. I typically apply humic acid pretty heavily in liquid form on bare or thin spots, and the zoysia just runs to it. I'm avoiding that to see what this can do on its own. I've also seen some reviews suggesting this product alters a lawn's watering/growth needs. I'm still getting the same dry spots in the same areas I've had for years when it pushes 90-95.
Edit: 7-22-19 - Growth is slowing a bit, so I'm sure the quick release portion of the nitrogen is handing off to the slow release. Overall, color is faded back to normal, but new growth does have good color. Overall, I think you would need to apply this several times over a season to do a "true" review, but I'd say this is pretty average, so I'm raising the rating to 2 stars with dings for the price and over promising. Having a warm season lawn, the top growth during the hot growing season probably isn't for me, and it's definitely a reason I typically do only slow release or small liquid nitrogen spoon feeding. Not a bang for the buck value, but it's worth putting in rotation for a smaller lawn if you want to try something new. I personally prefer liquid treatments for micros and iron as I get a better, longer-lasting result that's a lot more fun to put out, but if you want a granular option, go throw down some Milo/Ringer and about .2 lbs./1,000 of N from a cheap quick-release fert, and you'll be fine.
In summary, it's an average fertilizer for a premium price from a guy who uses lawn dye and overpromises products. Two stars.
July 2019 · Patio Lawn and Garden