Scotts Outdoor Cleaner Patio & Deck with ZeroScrub Technology Concentrate, 0.5 gal.

This cleaner works great for the green mossy stuff that gets on my house. My area has had a lot of rain and I have trees that shade one side of my house. It never gets sun so a LOT and I mean a LOT of green stuff gets on my siding. I watch the weather to make sure there are 3-4 days without rain. I spray this solution on the siding and wait. By the second day, I can see it working. By the fourth day, it's gone! I had to do it twice because there were some areas and really had some thick green moss on it. But I'm happy! I look at all my neighbors with the green on there homes and I want to tell them about this solution. This beats pressure washing which I've done in the past but I couldn't reach all the areas on the second floor of my home. This solution reached high up on my chimney. I don't want to be without it. I have an extra bottle for when I start seeing the green again. It's been 1-2 months and the green hasn't returned nor has the solution discolored my siding. It just looks new. Remember, this isn't to CLEAN the siding per say but it does get the green off! I do see some dirt but if I had the time or energy, I'm sure I could use this solution by spraying and then following it up with the pressure washer. My main use for this was just to get the green off.

I like everything about it ,I spray the roof and the patio twice a year and it keeps the green mildew from growing..

It took two applications (and an additional round of light scrubbing) but overall I'm happy with this product. I moved into an older apartment with a concrete patio surrounded by a wooden fence and a brick wall. The enclosed area had a lot of mildew and a few moldy areas. I don't have an outdoor spigot so I bought a tank applicator and sprayed down the area twice. Over one week, I noticed considerable improvement on all brick, wood, and concrete surfaces. It wasn't as "scrub-free" as I would have liked, but the concentrate is a very good value and I would buy it again.

After years of using Scott's products, I saw this and figured I'd use it due to the brand's previously reliability. I have two very small areas with a little bit of black and algae on my north side of my house. The siding is the old asbestos hard siding. I have plants that I don't want to kill so want to avoid bleach, so I figured I'd try this. I followed all directions on an overcast day (the instructions recommend this to avoid the spray drying too quickly) and it was effective somewhat on the algae, but didn't touch the black areas (circled in the photo).I have chosen an alternative brand going forward.Update: THIS IS NOT PLANT SAFE! The bottle says it is as long as you wash the plants off with water immediately after it's on them, but this has almost decimated my front flowerbeds. I followed all directions. I'd literally give this negative stars if possible.

Tried this Scott product and it did not clean moss and mold from pavers the way Wet & Forget or other similar products worked. Based on the higher concentration of cleaner to water I thought it would do a better job then it did.

Great for outdoor fence furniture. Follow directions, not like bleach, spray on , apparently the longer you let it dry the better it works. You see results starting most next day it says it keeps going. In my view it goes keep working, with best results in first week. I used it on our wooden six ft fence, completely to green mildew mold off. Same with our cedar outdoor furnishings. Not working as thoroughly on concrete patios and driveway, it might need more time and second or more concentrated solution. I highly recommend it

This really cleaned up our concrete patio well. We live in a condo and we don't have an outside water source. We followed the directions, used a bucket and we did do some scrubbing with a deck brush, but fairly minimal, mostly to spread it around. It really took off all the algae that was caked on from having plants all over our patio and not having been cleaned for over a year. Made our patio nice and bright and clean. We bought another jug to keep on hand for when it gets gross again.

This stuff works! I sprayed this product on my stone patio to remove green algae. As instructed, I applied and left it on. After a few hours nothing seemed to be happening. However, by the next morning the algae was gone. It is not so effective on removing dirt stains, but since I bought it primarily to remove the algae I was very happy with the results. Product is easy to use. I recommend it for removal of green algae.