Update Location
Enter a ZIP code to get product recommendations and information tailored to your area.
Miracle-Gro® Seed Starting Potting Mix
Miracle-Gro® Seed Starting Potting Mix
null
Shop Now
Need it fast?
Shop Now
*Availability and inventory are subject to change.
Overview
• Effective in germinating a variety of different vegetables, flowers and herb seeds.
• Ideal for rooting leaf, stem and root cuttings.
• Specially formulated to ensure expedited root development.
• Enriched with Miracle-Gro® Plant Food. • Ready to use right out of the bag.
• Ideal for rooting leaf, stem and root cuttings.
• Specially formulated to ensure expedited root development.
• Enriched with Miracle-Gro® Plant Food. • Ready to use right out of the bag.
Benefits of Use
• Miracle-Gro Seed Starting Potting Mix helps with the process of starting cuttings and also increases the strength of your plant’s roots.
• This seed starting mix is specially formulated to help grow fast and strong root development that provides a solid foundation for your plants and aids its healthy growth.
• It vastly improves the drainage that not only serves to improve the health of your plants, but also prevents diseases that develop from overwatering.
• This seed starting mix is enriched with Miracle-Gro® Plant Food to continue to provide your plants with the nutrients required for growth.
• Miracle-Gro Seed Starting Potting Mix continues to feed the plants instantly and improve the overall health of your plant roots and eventually the overall health of your plants.
• This seed starting mix is specially formulated to help grow fast and strong root development that provides a solid foundation for your plants and aids its healthy growth.
• It vastly improves the drainage that not only serves to improve the health of your plants, but also prevents diseases that develop from overwatering.
• This seed starting mix is enriched with Miracle-Gro® Plant Food to continue to provide your plants with the nutrients required for growth.
• Miracle-Gro Seed Starting Potting Mix continues to feed the plants instantly and improve the overall health of your plant roots and eventually the overall health of your plants.
Ingredients
• Formulated to help germinate vegetable, flower and herb seeds develop stronger plant roots.
• With a neutral NPK ratio of 0.03-0.03-0.03,
• Helps feed your plants for up to 3 months as it is blended with Miracle Gro Plant Food.
• With a neutral NPK ratio of 0.03-0.03-0.03,
• Helps feed your plants for up to 3 months as it is blended with Miracle Gro Plant Food.
Rated 5 out of
5
by
robryan from
Give Your Seeds A Helping Hand...
I live in Northern Idaho and our planting season is very short, especially if using seeds. This year I decided to plant a Hummingbird and Butterfly Wild Flower seed mix. To prepare the soil, I started with a base of the seed starting potting mix, even though it is an outside flower garden. Then, I scattered the seed and topped with the Miracle Gro Moisture Control garden soil. We've had rainy and cold temperatures since I've planted my seeds. Despite Mother Nature, my seeds are sprouting and looking healthy. Thanks Miracle Gro!
Date published: 2012-06-18
Rated 5 out of
5
by
Anonymous from
Must Have for Seed Starting
Using this product has been very successful when starting many types of plants and flowers from seed. Have been using for 3 years now. Never had a bad batch of seeds. Easy to understand directions.
Date published: 2012-05-18
Rated 4 out of
5
by
SCENK from
Potting mix for seed starting
It's a great potting mix specifically designed for seed starting, with a soft, light, and rich texture.
The soil comes pre-mixed with plant food and organic material, which is essential for healthy plant growth.
In terms of performance, I tested it on our tomato seedlings, and they grew strong and fast! I’m really happy with the results.
My only complaint is the bag size—it’s so small that you’ll need to buy several if you plan to grow an outdoor vegetable garden. Definitely opt for a larger bag if you want to get the most out of your bulk planting!
Date published: 2025-08-06
Rated 4 out of
5
by
Sanali16 from
Good for new plants
My mom really enjoys starting plants from seeds of cuttings and this potting mix is perfect for that. We typically use this when starting a small seedling or with a cutting that we are trying to propagate and this mix works well for that. The mixture does have some small sticks and such mixed in but it hasn’t seemed to be an issue for us. It’s a good quality mix that helps get plants growing in a container before they are ready to be transplanted to the ground.
Date published: 2025-08-05
Rated 4 out of
5
by
AngieT from
Potting Mix
Miracle grow potting mix is great for your plants. It provides them with nutrients that the plants need. It’s special formula for fast root development. Recommend to read directions. I would absolutely recommend for you plants.
Date published: 2025-08-05
Rated 4 out of
5
by
Marci50 from
So far so good!
Since it is late to really plant anything from seed, I only took some marigold seeds from my existing plants and planted them . So far so good! They germinated pretty quick, I liked the texture of the soil. I will save the rest of the soil for next year’s early planting season.
Date published: 2025-07-28
Rated 4 out of
5
by
B. Stan. from
It Matters
I have tried a few seed starting mixes over the years and Miracle-Gro consistently meets and exceeds its competition. Try it and try to prove me wrong. For stable and healthy starts for your garden this will be your go-to.
Date published: 2025-07-28
Rated 4 out of
5
by
keedyboo18 from
Ok
I feel like this soil works best for people with a green thumb. I’ve tried it before and it did nothing for my indoor plants. The outdoor ones did okay but I couldn’t get the plants I really wanted to grow to grow in it. It’s great soil nonetheless, just not for this beginner.
Date published: 2025-07-28
Rated 4 out of
5
by
CD3 from
Miracle-Gro Starting Potting Mix is a great start!
Miracle-Gro® Seed Starting Potting Mix is a fantastic product for getting seeds off to a strong start. The texture is light and fluffy, making it easy for tiny roots to grow and expand. It holds moisture well without getting soggy, which helps prevent issues like damping off. I noticed my seeds sprouted faster and looked healthier compared to other mixes I've tried. It's also enriched with nutrients to support young plants during those crucial early stages. Whether you're starting vegetables, herbs, or flowers, this mix gives you a great foundation for success. I’ll definitely keep using it.
Date published: 2025-07-28
Rated 4 out of
5
by
RobertK from
Negative Reviews Seem Wrong
As another reviewer stated, I am not understanding all the negative reviews. People are complaining about sticks and wood, when they seem not to understand that a starting mix is NOT the same thing as dirt. Starting mix is lighter and less compacted to allow more breathing room. Also, complaints about mold and unknown growth might be due to pots that were not cleaned and sterilized with a bleach-water spray before potting, or particular bags of the mix might, in fact, have been infested, but I think the company might replace that, if you just reach out to them. I did a previous review, but I'm doing another one to counteract the negativity. And I'm including a picture this time.
Date published: 2024-03-29
Rated 4 out of
5
by
RobertK from
No Complaints Seedlings Look Good So Far
I am one month into seed starting with this mix, and I have tomato seedlings 5 inches or more tall. I planted three seeds per pot, in six four-inch pots, and thinned to the best looking seedling for each pot, for a total of six plants that I will eventually transplant outside. After sprouting and true leaves began developing with minimal light, I placed under grow lights for twelve to fourteen hours a day. I replanted once during this time, in the same pots, to gain greater depth of root growth. I assume that I can leave the plants in this mixture until time to transplant outside. I gave only four stars, because I've never used this or any other seed starting mix before, so I'm allowing for the possibility of failure or for another product to be better. As my title says,"No Complaints". The product seems to work very well for me.
Date published: 2024-03-29
Rated 4 out of
5
by
Gingee4 from
Works if you know what you're doing
It's a seed starting mix. You dump it into a large container, and slowly pour boiling water over and mix, until it has absorbed water. Then you fill your trays. All these negative reviews because ignorant people don't know what they are doing. Been using miracle grow seed start on and off for years, availability where at live, and making my own(10+)and yes you do have to sort through and remove large sticks etc, but that is true for all seed starting mixes. 4 stars because ingredient label is hard to find.
Date published: 2024-03-03
Rated 4 out of
5
by
Lisa S. from
So far so good until now
I started my vegetable plants (variety of tomatoes & sweet peppers) in Jiffy Peat Pellets and then transferred them to 4" pots, using this mix, after a few weeks. Initially I overwatered them and mold was growing on the outside of the containers. I corrected that problem and they seemed to be doing ok for the last couple weeks...until the last few days. It seems like when the leaves touch the wet soil, they burn and then the plant dies. If I look it up online it says it's over fertilized or that there's too much salt in the mix. I usually garden organically but this year I wanted to try and have bigger plants than usual at this time. Though my plants are beautiful, they are no bigger than usual. I probably wouldn't buy this again.
Date published: 2020-05-14
Rated 3 out of
5
by
Bob from
So Far so Good
I sowed seeds in the seed starting mix two weeks ago. So far about 50% germinate, different vegetable .
Will I need to move to Miracle Potting Mix before I put in garden?
Thanks Bob
Date published: 2024-04-01
Rated 3 out of
5
by
Earthdancer from
Don't know what is growing out of the soil.
I only put seeds in one row but a lot of things are growing that I didn't plant. Hope my super rare seeds do come up. Until then I'll see what this other stuff is
Date published: 2024-01-18
Rated 3 out of
5
by
MJ2000 from
Works ok. Not a sterile mix.
I bought two bags a month ago and used one bag to start veggie seeds. The seeds are sprouting just fine but, as this is not a sterile mix, there is some mold and fungus growing in the soil too. I just remove this as I see it.
However, when I opened the second bag the soil in the bag (that I just bought a few weeks ago) had a lot of visible white and yellow mold growing on the surface. I'll try to remove this mold before using (and maybe try to sterilize it) but it's really frustrating to see that when I first open the bag!
Date published: 2021-08-31
Rated 3 out of
5
by
Tomato garden from
Rocks in my potting soil?!
I have used this seed starting mix for years and usually it is great. This year, as I was transferring my hydroponically started seeds to their own pots I found a number of ROCKS in the mix! It’s a newly opened bag, so I know it wasn’t my 4 year old “helping” this time. I’ve never encountered something like this with the seed starting mix; I’ve come across 2-3” chunks of wood in regular miracle grow potting soil, of course, but I thought this was more finely screened? Idk. Still pretty good stuff. Wish they’d move to something more eco friendly like coir, though.
Date published: 2020-04-17
Rated 3 out of
5
by
Glosworld from
Not the best, not the worst cont.
I forgot to write in my first review that the last 2 bags I purchased had gnats in them. But again, I simply baked the soil in the oven, or in the microwave (till you reach 180 degrees) and then allow to dry overnight and all is well. I have also mixed this stuff with regular dirt from my garden for better drainage. It worked really well that way too!
Date published: 2014-09-04
Rated 2 out of
5
by
ctdave from
dont buy
Terrible results will not buy again What do others recommend
Date published: 2025-03-31
Rated 2 out of
5
by
gor from
okay
I started a lot of my plants from seed this year. I started approx 80 Vincas. I had both MG and Schultz seed starting mix left from previous year. Side by side comparison between had the Schultz the clear winner for size and vigor. Conditions were exactly the same. Both had comparable germination rates.
Date published: 2023-06-28
Rated 2 out of
5
by
BummedUser from
Filled with wood chips
I was really disappointed that the seed starting mix has so many big chunks of wood in it. That defeats the purpose of a seed starting soil.
Date published: 2022-05-28
Rated 2 out of
5
by
Rtwill51 from
Soil Quality
A good friend of mine works for Miracle-Gro so I purchased this product in support of his family and sowed a bunch of seeds yesterday. The texture of this product is too course for my liking, too many chunks of wood, etc. It appears that this is just their potting soil rebranded. I guess the proof will be in the seedling since I also used the old brand. I use other Miracle-Gro products with no complaints and recommend them to others. However, if there is not a difference in seedling quality, I will have to go back to my old starting mix.
Date published: 2021-02-28
Rated 2 out of
5
by
Dodo from
Miracle grow potting soil.
I have used your potting soil for years. This is the first year that I have no success with the soil. I planted at least 25 plants and all but two died. Did everything the same and no success. Lost quite a bit of money. Did something change or does the soil go bad ?
Date published: 2020-08-25
Rated 2 out of
5
by
wreakingHavoc from
Mold
I’ve used Miracle-Gro many times and I’ve never had an issue with mold before this year. The seeds germinated but then mold started growing on some of the plants and soil. I water everyday and their getting a decent amount of sunlight. My concern is, even the pots that don’t show mold; the plants are wilting and dying. Did something change in your mixture?
Date published: 2020-05-01
Rated 2 out of
5
by
Apple91 from
Why is this fragrant?
So i brought two bags of this because its the only seed starting mix they sold at my local tractor supply. After i opened the bag i got a big whiff of a pleasant fragrance. Why does this stuff smell like a perfume? For some reason the consistency just didnt feel "right" to me. I only used this to transplant so far but tonight i will be starting new seeds and i'll update you all on how they do.
Date published: 2019-03-15
Rated 1 out of
5
by
Concerned from
Warning
Not much "Perlite", but does Contain 5-10% Styrofoam, would rather use sand.
Date published: 2025-05-23
Rated 1 out of
5
by
LAWeber from
Not sterile, poor results
I used this product in sterilized 1020 containers, inserts, and covers. The first thing to grow was a layer of algae-like growth that sealed off the surface. Very few seeds germinated. I knew it was difficult to wet so I started early, letting the inserts sit in water and top watering them prior to sowing seeds. I also have a nice "crop" of fungus gnats. I put up yellow sticky strips and they get clogged with the gnats. I put a piece of Mosquito Dunk in each container regularly to kill off the larva. Next year, I will be buying seed starter mix at my local feed store.
Date published: 2025-05-22
Rated 1 out of
5
by
ne2q from
Poor Quality....Not a "MIRACLE"
The material does not get wet or retain water. When adding water seeds just seem to float to the top with the product particles. This product needs a complete reformulation. Don't waste your time or money on this. It is far from a "Miracle".
Date published: 2025-04-21
Rated 1 out of
5
by
Mrm from
Mushroom madness
If your looking to grow mushrooms this stuff is great. Last year i bought a bag and a crop of mushrooms popped up. The pepper seeds i planted in this stuff didnt.
This year i just bought another bag of this stuff thinking i just got a bad batch last time. Same results this time. Lots of mushrooms, no pepper plants. I did start 40 plants in other soil and all are doing great.
So to grow mushrooms, put soil in pot and water. To grow crops, use anything other than this.
Date published: 2025-03-04
Rated 1 out of
5
by
DaniD81 from
Horrible product
This is by far the worst miracle grow product I've ever used! It takes so much water to even moisten the dirt it's ridiculous. My seeds took 3x longer to start then they ever have before and last year I used dirt feom the dollar store. I would love my money back as well as my time.
Date published: 2024-06-23