
What is Pro-Mix and how to use it?
Pro-Mix encourages you to put a fertilization schedule into place when seedlings are 3-4 weeks old. Growth booster. Many Pro-Mix products contain a growth enhancer, Mycorise, which gardeners insist makes a difference for their plants. Availability. Pro-Mix can be hard to find locally. You made need to call several retail outlets or order it online.
What is pro mix potting soil?
What is Pro Mix potting soil? Pro Mix potting soil is peat-based potting soil designed for indoor and outdoor plants as well as seed starting and other garden needs. The ingredients are carefully selected to support vigorous growth, better moisture management, improved nutrient uptake, larger root systems, and healthier plants overall.
Why does Promix soil work better than other types of soil?
Here’s why ProMix soil worked better for me than the other types of soilless potting mix. ProMix is a high-quality plant-growing medium. The ProMix soil line is known for offering a variety of potting mix options, some of which are listed as safe for organic growing.
Which pro-mix blend is right for your plant?
Whether you require low moisture retention or prefer a high percentage of perlite, PRO-MIX HP is the choice of many growers for specialty crops, like poinsettias and flowering potted plants, or rooting cuttings. PRO-MIX HP provides the highest air porosity of all of the PRO-MIX blends with good moisture retention.

ProMix Soil: High-Quality Potting Soil For Organic Gardeners
ProMix is a high-quality plant-growing medium. The ProMix soil line is known for offering a variety of potting mix options, some of which are listed as safe for organic growing. My favorite potting mixes are the Organic Vegetable & Herb Potting Mix and the plain ProMix HP peat moss+perlite bales.
Where to Find Pro-Mix Soil
Pro-Mix Vegetable and Herb Mix is available on Amazon in the US at the links in the section above. Amazon also carries ProMix HP and ProMix BX (the large bale types of promix soil). Here in Canada, I buy Pro-Mix from Home Depot, Home Hardware, or one of our many wonderful independent garden centers.
What Makes Great Organic Potting Soil?
For any gardening supplies, I always look for potting soil that is safe for organic gardening, with high-quality ingredients and no manufactured chemicals or contaminants. The OMRI-Listed logo is a good thing to look for when shopping. You can also look up any product on the OMRI website to see if it is listed as approved for organic use.
ProMix Organic Potting Soil
So if most high-quality organic potting soils have similar ingredients, why is ProMix better? The biggest difference I’ve found between ProMix soil and other high-quality soilless potting mix available in my area is that the line includes an additional ingredient: mycorrhizal fungi.
Using ProMix Vegetable And Herb Mix In The Garden
I’ve had excellent results with ProMix Organic Vegetable and Herb Mix. The soilless potting mix works well in the larger containers in my patio herb container garden, as soil preparation in my berry walk garden, and as the top layer of soil in my new raised garden beds.
Using ProMix HP For Microgreens & Wheatgrass
I also use ProMix for my wheatgrass and other microgreens. I used to just sprout the seeds in water, which does work, but I’ve found using a bit of Pro-Mix HP leads to better production more consistent growth. The greens are also more likely to survive if I forget to water it!
Is ProMix Worth It?
The best potting soil can be more expensive than generic options, but in my experience, it’s been well worth it. I’d rather spend a bit more money upfront and then have a successful garden than have to re-do work or pay to replace lower quality products.
Which Pro-Mix should I choose?
While Pro-Mix nearly always gets an “atta-boy” for results, there are other variables that can make the tomato gardener wonder whether or not to choose this product for seed starting. First, there are a large number of products under the “Pro-Mix” brand. It’s confusing. How can you know which one to use?
What are other advantages and disadvantages to Pro-Mix?
Sterility. Pro-Mix is a soil-less medium. It’s a sterile environment with no bacteria or fungi to kill seeds or seedlings. That means you lose fewer seedlings to damping-off during the starting process. Plus, the seedlings you grow are stronger since they don’t have to fight as many infections. Contents. All formulas are sphagnum peat moss-based.
Helpful tips when using Pro-Mix
Pro-Mix has a reputation for being compressed and hard to work with. Transfer Pro-Mix to large Rubbermaid container or wheelbarrow and use a 3-tine claw or hand tool to break up clumps. Alternatively, add water to Pro-Mix, cover it, and let moisture soak into the mix before mixing.
Is it really so hard to find Pro-Mix?
You can order it online. Alternatively, readers have found Pro-Mix at these distributors:
What I learned about Pro Mix
If you can't find Pro Mix where you used to, call Premiere's 800 number in Pennsylvania and ask to be connected with the regional sales rep. The sales rep can tell you much more than the automated, incomplete store locator on their website. In some cases, like Oklahoma, they can help you. In others, like Alabama, you are out of luck.
Comments (58)
I can guess which possibly Orange and Blue Boxes you're talking about- HA! Cuz that's the exact same responses I get.
