Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this grass seed for exceptional performance in shady, difficult-to-grow areas, with most reporting successful germination and rapid growth within days to two weeks. Many describe dramatic transformations from bare dirt to thick, green lawns where nothing else had worked. Reviewers highlight the dense shade formulation as uniquely effective, appreciate its ease of application with a spreader, and note consistent reliability. A small group reported no growth despite following instructions, though these experiences remain rare. Overall, most customers consider this product highly effective and recommend it for challenging shade conditions.
Customer review summary generated by AI, including incentivized reviews.Total crap.
Would Not RecommendFollowed instructions to the t. Some sparse spots came up and the rest crapped out. Looked at other's reviews and it seems that most had the same experience I had.
From pennington.com
From pennington.com
I would buy this product again. Will it spread?
Would RecommendI live in Austin TX. I have some shaded areas in my backyard that are just dirt. I decided to try Smart Seed Dense Shade Mixture. I prepared the soil by using a manual push pole aerator to loosen the soil. I dampened the soil, and ran the aerator over the area 4 days in a row to make sure the soil was very loose, several inches deep. I used my Scotts spreader and then carefully raked the soil to embed the grass seed. I watered it in and made sure the soil remined damp. I also made sure there was...
From pennington.com
Not impressed
Would Not RecommendTwo week in and nothing. Rakes, applied the seed, additional top soil, and water daily. Nothing but a higher water bill.
From pennington.com
Hello, thank you for taking the time to leave your feedback! We always appreciate hearing from customers! Grass seed can take up to two weeks to germi... Read More
Sprouts so fast!
Would RecommendI created an entirely new lawn, 1-3 inches of topsoil and spread this seed. My lawn gets 2 hours of sunlight maybe! And i have pine trees, this stuff grew like weeds!! Highly recommend. Just curious when I am supposed to mow... (approaching my second week growth)
From pennington.com
Thank you for reaching out. We recommend mowing once your grass has reached 3 inches. Only take off one inch the first time. Cutting it too short may ... Read More
Dense Shade Grass Seed
Would Not RecommendI live in Houston, and I couldn't get grass to grow underneath my oak trees. After looking at the different types of seeds, I decided upon the dense shade seed because it was about the only seed that could grow down here with minimal sun. I planted mid March and it sprouted and was doing well till the heat of summer was upon us. In just a few days of mid 90's it stopped growing, turned brown, and shriveled up. When I contacted Pennington about the guarantee stated on the bag, they told me it had...
From pennington.com
Hello, We are sorry to hear about your experience with this product. Please contact customer service so we can assist you further at 1-800-285-7333. T... Read More
Quick sprouting
From pennington.com
I would not recommend this product.
Would Not RecommendI rototilled, mixed in a 10-10-10 fertilizer, seeded and then covered with 1/8inch of top soil. I have kept the seed wet and the first 4 inches of my soil wet for 3 weeks now and have had no growth. I recommend a different grass seed as this seed does not work.
From pennington.com
We're sorry to hear that you did not have a good experience with our product. Thank you for letting us know. Hearing about your experience is importan... Read More
Came Up Well
Would RecommendPlanted in shade under trimmed pine trees. Came up well within 2 weeks. Thin blades. Uniform dark green Will need to plant more to fill-in bare spots.
From pennington.com
Hello, thank you for taking the time to leave your review. We appreciate your business. Thank you.
Very dissatisfied with Pennington Deep Shade Grass Seed
Would Not RecommendI rototilled the area below our Linden Tree three weeks ago, in spring before it's leafed out, added lots of nutrients and moisture retaining sheep and peat with Scott's Lawn Soil ($$), watered daily for three weeks, double dose of wrapped, Pennington Derp Shade Grass Seed - Nothing after three weeks, inspected the soil and seeds = no growth here on the front range of Denver area in late April with April showered and snow, nothing, not a blade of grass. Pennington warranty requiring dated receip...
From pennington.com
We're sorry to hear that you did not have a good experience with our product. Thanks for letting us know. Hearing about your experience is important t... Read More
Works, if you use it correctly and look past the negatives
Would RecommendThis seed did an awesome job at germinating, and is filling in 100% bare patches quite nicely! Now, we'll see how well it tolerates having ~3 hours of sun, as advertised. The fertilizer coating is awful. Green powder coated everything and everyone involved in spreading this stuff. But, if you look past it, it works. As always, when I look through reviews of grass seed, I see a lot of dissatisfied people, because they weren't experienced at successfully growing grass from seed. Makes it hard to f...
From pennington.com
Starting to grow
Would RecommendIt's been several months since I applied this product. I did give it 1 star. I would like change that to 3.5 stars. The grass is starting to fill in. I'm not sure why it took so long. We have had several heavy rains and wind. Not sure if maybe it was washed away or blown away. Still far from perfect but now I'm seeing progress.
From pennington.com
Thank you for your review! Should you have any questions or require additional assistance, please contact our customer service department toll-free at... Read More
[This review was collected as part of a promotion.]
From pennington.com
Nice fertilizer
Would Recommend[This review was collected as part of a promotion.] We used this in our backyard along our fence line where there's no grass. We have a 6 foot wood fence and our dogs like to run the perimeter therefore leaving that area very sparse of grass. It took some time but we now have grass growing in there! I'm excited! It's going to look so much better!
From pennington.com
[This review was collected as part of a promotion.]
From pennington.com
No grow for me
Would Not Recommend[This review was collected as part of a promotion.] I was given a bag of Pennington Smart Seed Dense Shade Mix to try. I spred it out in an area which gets little sun. The only thing that came up was weeds. I patiently am waiting for grass to grow. It's been almost 3 weeks. Not impressed at this point.
From pennington.com
Hello, We're sorry to hear that you did not have a good experience with our product. Thanks for letting us know. Hearing about your experience is impo... Read More
Easy to use
Would Recommend[This review was collected as part of a promotion.] We live in Michigan so we had a late start in getting seed planted. This was easy to use - covered with topsoil and kept moist. Grass has already sprouted in less than 2 weeks.
From pennington.com
A quality grass seed
Would Recommend[This review was collected as part of a promotion.] In a stroke of good timing, shortly after receiving this Dense Shade mix from Pennington just a couple weeks before my back deck was removed (due to structural issues). This left a huge dirt patch in an area of my yard that is mostly shaded by the house. The grass had a bright green color to it. As somebody knowing nothing about growing grass, I couldn't help but feel the grass to come will be a vibrant color once it comes in. It also was self ...
From pennington.com
Good patching seads
Would Recommend[This review was collected as part of a promotion.] We have quite a big lawn and of course some dead spots appears every spring. I was able to get this pack to try it out and it looks like pretty solid product. Main point - majority of seeds actually sprouted and covered those dead areas. For now it all looks good. This is a main part of this product. I will definitely be back next spring if needed for more.
From pennington.com
Finally grass under my tree!!!
Would Recommend[This review was collected as part of a promotion.] I have an area that I haven't been able to get grass to grow. It only gets sun for about half hour in the early morning. The rest of the time it is completely covered by a very thick beech tree. I had almost gave up on it, then after trying the Pennington dense shade mix I was finally able to get good looking grass under the tree. I have tried multiple different "shade" mixes this is the first one that worked. Thank you Pennington!
From pennington.com

Hello, we apologize for your frustration, but our guarantee does state that it's a 90 day guarantee in which we require the receipts and packaging in ... Read More