#1 Home Improvement Retailer

Internet #204502223

Model #74978500

Store SKU #536396

Seed Starting 8 qt. Potting Soil Mix

  • For use with seed or when starting cuttings
  • Designed for fast root development
  • Should only be used for plants in containers
  • View More Details
0 in stock
Text to Me

Frequently Bought Together


Product Overview

Link to Mulch and Soil Calculator. Get the right amount the first time.
Start your plants on their way to a more beautiful state with the Miracle-Gro Seed Starting Potting Mix. The mix is enriched with Miracle-Gro Plant Food and is specially formulated for fast root development. It is excellent when starting from seed or starting plants with leaf, stem, or root cuttings. Use it in containers, and get your plants growing faster with Miracle-Gro.
  • Specially formulated for fast root development
  • Enriched with Miracle-Gro plant food
  • Excellent for starting cuttings
  • Use when starting from seed and with leaf, stem or root cuttings
  • For use in containers
  • Click here to view the Types of Soil Buying Guide

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.



Bag Capacity/Dry Volume (qt)
8 qt
Ideal For Growing
Soil Matter
Soil Type

Warranty / Certifications

Mulch and Soil Council Certified

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.3
    out of 307 reviews
  • 63%recommend this product
Filter by:
Showing 1-10 of 307 reviews
Nothing special about this mix.
If you want super fine texture, this is not it. For example, it is not fluffy and airy like peat moss, if that is what you have in mind. This product (as do most seed starting mixes) has twigs and sticks in it; some rather sizable. If you are going to use it indoors, you will need to sterilize this product (like all others). Place it in a bucket or tub and saturate it with boiling water. Cover and wait a few days for it to dry, then use it indoors. If you don't do this you will be plagued with gnats.
Response from Miracle-gro TeamJan 27, 2022
Thanks for your feedback about Miracle-Gro Seed Starting Potting Mix. While small pieces of bark and twigs are intentional components of our growing media including potting soil, garden soil, lawn soil, and topsoil, you should not find large pieces of wood or bark. Please give us a call at 877-220-3089 for assistance. miracle-gro
  • Verified Purchase
Hydrophobic soil
I used the miracle grow seed starting mix for years. Starting this spring every bag I use seems to be "hydrophobic". You literally can't get water into the soil. When I water my flats the water pools and runs off with half my soil in seeds. It ends up being a huge waste of money as I'm losing expensive seeds. Sounds like others are having this issue as well.
Response from Consumer ServicesOct 21, 2021
Moss, we're sorry to hear about your experience with Miracle-Gro Seed Starting Potting Mix. We'd like to offer our assistance with the product guarantee. Please reach out to us here: https://tinyurl.com/y9nlw5xl
    False Advertising
    Just purchased Seed Starting mix and it is basically the same product as garden soil. Out of the six bags I bought opened five, one was close to a seed starting mix. I wont be buying again.
    Response from Consumer Service Aug 19, 2021
    We are sorry to hear about your experience when using Miracle-Gro Seed Starting Potting Mix. This product contains sphagnum peat moss, perlite, fertilizer and a wetting agent. This mix should not be heavy like a garden soil. At your convenience, please contact us to see what we can do to help. We can be reached at 888-295-6902.
      Very good seed starting mix...
      Very good seed starting mix
      • Verified Purchase
      Too many sticks in the seed starting mix!
      Just purchased a bag of Miracle Grow Seed Starting Mix at Lowes. I opened it to pot up some Canna seeds and it is full of sticks. Seed starting mix shouldn’t have sticks or large chunks in it!
      Response from Consumer ServiceFeb 19, 2021
      We are sorry to hear of the problem you have encountered with the Miracle-Gro Seed Starting potting mix. Most of our soils are made from composted forest products, meaning it would be normal to see small pieces of bark and twigs. Composted forest products provide a high organic contact and nutrients without concern for soil compaction. All of our product carry a satisfaction guarantee if you would like to discuss this further please use the following link: https://tinyurl.com/y9nlw5xl
        23 watt CFL 3' above seedlings kills pathogens ~
        23 watt CFL leaks a little bit of U.V. which can burn seedlings so keep the CFL further away. Germinated seeds are white with no green. Need to green a little with very gentle light and then move closer to the light. I use 2 of these 8 watt 5000k daylight LED 800 lumen house light bulbs and 1 CFL in a brooder light which is probably 2700k to 3000k and its warm in color and its 1600 lumens. I also saw mold and fungus that probably came from the seed starting mix and the CFL removed all the pathogens that cause damping off. 100% success with every seed germinated. 3200 lumens total with 3 light bulbs to start. I use an old Sekonic camera light meter and when light is at least 500 lumens per square foot seedlings thrive. ½ warm ie 3000k and ½ blue ie 5000k Kelvin Temp. Room temperature average around 70 degree's. These seedlings are 5 weeks old. Excellent product and perfect fertilizer just right I don't have to worry about plant food. These suggestions enhance an excellent product. I hope this helps. I'll be buying more of this excellent seed starting product.
          • Recommended
          is very good
          is very good
          • Verified Purchase
          • Recommended
          1 person found this helpful
          I used it to start two Night Blooming Jasmine (Plant - Cestrum nocturnum ) for this spring/summer...
          I used it to start two Night Blooming Jasmine (Plant - Cestrum nocturnum ) for this spring/summer/fall season.
          • Verified Purchase
          • Recommended
          1 person found this helpful
          The potting soil is very excelente, because help grown the seed very fast.
          The potting soil is very excelente, because help grown the seed very fast.
          • Verified Purchase
          • Recommended
          2 people found this helpful
          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?
          Response from Consumer ServicesJun 11, 2020
          We are sorry to hear of your experience with Miracle-Gro Seed Starting Potting Mix. Fungal and mold spores are a natural part of soils. We do not sterilize our soils. Mold only becomes a problem if there is an overgrowth. Overgrowth occurs when the soil is too wet. We are interested in speaking to you about your experience and to extend to you our product guarantee. If you are willing, please contact us at http://tinyurl.com/noc5mcg.
            Showing 1-10 of 307 reviews