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Seedling Seed Starter Soil Mix - Peat-Free Organic Potting Mix for Seeds, Cuttings, Microgreens- Enriched w/Worm Castings, Root-Boosting Biochar, Less Prone to Gnats for Germination & Propagation- 4qt

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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, May 4
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Size: 4 Quarts


Color: Seedling


Features

  • Ideal Growing Foundation: Our seed starter soil mix is expertly formulated to enhance soil aeration, drainage, and nutrient absorption, providing the perfect environment for strong, healthy seedlings and plants to flourish. This seed starter soil supports vigorous plant development from the very beginning.
  • Peat-Free Formula: Crafted from eco-conscious ingredients like biochar, worm castings, mycorrhizae, pine bark fines, sand, and compost, our seed starter mix increases fluffiness and enhances drainage. This premium seed starting potting soil mix offers a sustainable, nutrient-rich blend for optimal plant growth.
  • Versatile for All Seedlings and Cuttings: Designed to meet the specific needs of all types of seedlings, cuttings, and microgreens, our seedling soil is ideal for starting vegetables, flowers, herbs, houseplants, and more. This seed starter kit provides a living soil environment tailored to nurture a wide variety of plant species.
  • Easy to Use: Prepare your seed starter tray or pot with Rosy Soil Seed Starter mix, following the depth and spacing recommendations on your seed packet to avoid overcrowding. For propagating cuttings, fill a pot partially with the seed starting soil, insert the cutting, and cover it with soil, leaving an inch at the top for easy watering.
  • Eco-Friendly & Resealable Packaging: Our seed starter soil comes in plastic-neutral, carbon-natural packaging designed to reduce environmental impact. The convenient 4lb resealable bag keeps your seed starting soil fresh and ready to nurture young plants while offering an eco-conscious choice for sustainable gardening.

Brand: Rosy Soil


UPC:


Global Trade Identification Number: 12


Product Dimensions: 12 x 7.96 x 3.46 inches


Item Weight: 5.46 pounds


Department: All Ages, Unisex


Manufacturer: Rosy Soil


Item model number: SD4


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • Organic natural gem
Size: 4 Quarts Color: Seedling
I like this stuff I find it holds the correct water to oxygen levels and seedlings and clones do well. You get what you pay for natural costs money in our synthetic world. If you are growing organic this stuff rocks
Reviewed in the United States on January 22, 2026 by Robert Frost

  • Works
Size: 4 Quarts Color: Seedling
My plants love this soil. They are getting bigger and look happy. I got this version because it doesn't stink at all. The soil stays moist longer, dont need to water as often. I used this to repot my plants that were all roots. Now they have some space and sprouting up new leaves. I'm no expert but it worked out anyway. ... show more
Reviewed in the United States on August 12, 2025 by lola

  • Screen it!
Size: 4 Quarts Color: Seedling
I'm happy with this seed starter with one exception, I would like to see it be finer with less wood products in the mix. I ran it through a screen and lost 10% of the weight. But I screen everything as new seed roots do better in fine starter.
Reviewed in the United States on February 14, 2026 by Hugh J

  • Value?
Size: 4 Quarts Color: Seedling
Less moisture more material. We'll see how it compares to some Jiffy germination soil. Jiffy is 2x the amount for same $$.
Reviewed in the United States on February 14, 2026 by Robert McKinney

  • Fantastic Soil
Size: 4 Quarts Color: Seedling
BEst soil for my plants, I will keep using it. Thxs
Reviewed in the United States on July 3, 2025 by Bonny

  • Good Value!!
Size: 4 Quarts Color: Seedling
Very impressed with how quickly my seeds popped up!!;)
Reviewed in the United States on September 9, 2025 by Brenda G. Harris

  • Too much moisture retention
Size: 4 Quarts Color: Seedling
Tried different souls and this one is boggy yet costs way more than others and that’s why I wanted to try it but nope, my seeds that sprouted soon died as it wouldn’t dry out for soooo long and the rest never sprouted. And it wasn’t the seeds because from my review of seeds, in other soils, they all germinated and grew strong. Buy this only if you’re growing moss ... show more
Reviewed in the United States on January 1, 2026 by Diana

  • Smells fresh!
Size: 4 Quarts Color: Seedling
If I were an earthworm I could tell you more. I used all the soil in one pot with some orchid drainage soil and put all the catnip I ordered from Amazon in that pot this week. The young plants look like they are dancing while trying out their new freedom and food. Cats are inside while the plants grow up outside. >^..^< ... show more
Reviewed in the United States on July 30, 2025 by Patricia Bayer

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