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SMART SEED 7-lb Mixture/Blend Grass Seed

Ratings & Reviews for Pennington SMART SEED 7-lb Mixture/Blend Grass Seed

4.1
212
Review
 4.1 out of 5
212 Reviews


78% Recommend this product

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.
184 Customer Reviews

Total crap.

Would Not Recommend

Followed 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.

May 21, 2025

From pennington.com

Response from penningtonpwr

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

penningtonpwrMay 23, 2025

Would Recommend
April 15, 2025

From pennington.com

I would buy this product again. Will it spread?

Would Recommend

I 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...

April 1, 2025

From pennington.com

Not impressed

Would Not Recommend

Two week in and nothing. Rakes, applied the seed, additional top soil, and water daily. Nothing but a higher water bill.

March 25, 2025

From pennington.com

Response from penningtonpwr

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

penningtonpwrSeptember 5, 2026

Sprouts so fast!

Would Recommend

I 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)

September 12, 2024

From pennington.com

Response from penningtonpwr

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

penningtonpwrSeptember 5, 2026

Dense Shade Grass Seed

Would Not Recommend

I 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...

July 4, 2024

From pennington.com

Response from penningtonpwr

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

penningtonpwrSeptember 5, 2026

Quick sprouting

May 24, 2024

From pennington.com

I would not recommend this product.

Would Not Recommend

I 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.

April 15, 2024

From pennington.com

Response from penningtonpwr

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

penningtonpwrSeptember 5, 2026

Came Up Well

Would Recommend

Planted 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.

August 30, 2023

From pennington.com

Response from penningtonpwr

Hello, thank you for taking the time to leave your review. We appreciate your business. Thank you.

penningtonpwrSeptember 5, 2026

Very dissatisfied with Pennington Deep Shade Grass Seed

Would Not Recommend

I 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...

April 29, 2023

From pennington.com

Response from penningtonpwr

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

penningtonpwrSeptember 5, 2026

Works, if you use it correctly and look past the negatives

Would Recommend

This 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...

October 13, 2022

From pennington.com

Starting to grow

Would Recommend

It'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.

August 1, 2022

From pennington.com

Response from penningtonpwr

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

penningtonpwrSeptember 5, 2026

Would Recommend

[This review was collected as part of a promotion.]

June 7, 2022

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!

May 26, 2022

From pennington.com

Would Recommend

[This review was collected as part of a promotion.]

May 25, 2022

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.

May 25, 2022

From pennington.com

Response from penningtonpwr

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

penningtonpwrSeptember 5, 2026

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.

May 23, 2022

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 ...

May 22, 2022

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.

May 20, 2022

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!

May 20, 2022

From pennington.com