Molasses For Plants – How To Use It In Your Garden

Molasses For Plants

Choose Quantity View Cart

It sounds crazy, but a can of Coke is actually really beneficial for the garden.

In fact, various forms of sugar are very useful to use in your foliar sprays.

If you’re applying any kind of microbial inoculant such as effective microorganisms or compost tea, the right sugar will give the microbes some food to eat right when they get out there, to wake them up and get them working away on all the amazing things they do for us.

Along the same lines, if you’re applying any kind of organic fertilizer, sugar will give your existing microbes the food they need to get them all excited so that they’ll start breaking down that new fertilizer, making it available for plants.

That’s especially helpful when applying a source of nitrogen such as liquid fish, because the carbon in the sugar balances out the nitrogen, much like we try to do when building a compost pile.

So yes, I apply some form of sugar every time I spray anything. It’s not expensive either.

I’d use Coca-Cola in a pinch, but really, there are 2 types that are ideal…

Molasses For Plants

The first is unsulfured blackstrap molasses.

The ‘unsulfured’ part is important because sulfur is used in some products as a preservative, to kill microbes, and we obviously don’t want to do that, as we’re trying to encourage microbes.

The ‘blackstrap’ is important because it’s the most nutritious of all types of molasses.

I use blackstrap molasses for plants whenever I’m ‘activating’ effective microorganisms and sometimes again when I’m spraying it, about equal amounts of EM to molasses for each process.

So if you’re buying the ProBio Balance mother culture, pick up 1 or maybe 2 times as much molasses. If you’re buying the Bio Ag ‘activated’ culture, just pick up the same amount of molasses to apply along with it.

The benefits of molasses as fertilizer, in addition to the sugar, are that it actually contains a nice array of minerals for the garden, and it’s also very sticky, so it helps your microbes and fertilizers stick to plant leaves during application.

Who Needs This The Most?

If you’re just picking up 1 organic fertilizer, I definitely recommend liquid seaweed or sea minerals or even liquid fish before getting a sugar source.

But the professionals really do use a sugar in every application, and I do too, and since it’s so inexpensive, I say go for it.

How To Use It

If applying it with EM, I use it at the same rate as my EM – 1/2 cup per 1000 square feet or whatever I’m using.

So for me 1 quart will do about 1000 square feet for a whole year (8 applications * 1/2 cup), and 1 gallon will do 4000 square feet.

Additionally, if you’re getting some EM/ProBio Balance mother culture and planning to activate it, you need almost as much molasses as mother culture for that process, too.

Make sure there’s some warm water in the sprayer to dissolve the molasses. I often use a bit of warm water to make the disolving work better.

Important Info

I go into more detail about ordering on the main page, but here are a few quick things I’d like to mention:

  • If you have a question about this product, leave it in the comment section at the bottom of of this page and I'll try to respond within a few hours.
  • Shipping is $10 if your order is $25 or less, $15 if your order is $25-$50, $20 if your order is $50-$100, and $25 if your order is more than $100 (AK and HI add $10)
  • Dry fertilizers and compost tea brewers ship for free, separately with USPS instead of UPS, so they will arrive on their own maybe a day or 2 apart from my other products.
  • I ship in the U.S. only. Products ordered by 2pm will ship same day. After that they ship next day. Weekend orders ship Monday.
  • All of my products have a 1 year 100% money-back guarantee.
  • With every order, I send $1 to Organics 4 Orphans and other similar organizations. O4O is working with the world’s poor to help them grow organic, highly nutritious, highly medicinal food for themselves, and then use the surplus food to generate income for themselves as well as feeding the orphans in their communities. My hope this year is to again send $1500US, which is enough to start projects in 25 new communities!

Order Now!

Choose Quantity View Cart

  • Blackstrap molasses is a great companion to microbial inoculants and organic fertilizers.
  • It helps plants more effectively uptake organic fertilizers, and helps microbial inoculants more effectively do everything they do

Just choose from the drop-down menu and click ‘Add To Cart’ up above!

Note: I used to sell dextrose as an alternative to molasses, and it’s a good one, but people weren’t buying it much, so I’ve discontinued it.

18 Comments

  1. jason on March 8, 2014 at 8:29 am

    hi phil!i was informed mollasses could be used at 5ml per 5 gal totie up chlorine, above you suggest not using too much in the garden due to yeast. i was planning on using mollasses in my fertilizer injector to help de-chlorinate my city water, through my drip irrigation. would dextrose be better and do the same thing?thanks

    • Phil on March 8, 2014 at 4:37 pm

      The two natural things I have traditionally used are ascorbic acid (vitamin C) or humates/humic acids, but more recently, I’ve learned that apparently many materials will work, from molasses to a bit of compost to sugar to all kinds of things, and it happens instantly, so yes, your 5ml of molasses should be fine.

  2. Elena on March 25, 2014 at 8:52 pm

    Hi Phil,I received several of your products. thank you very much.My questions are related to how much of the product to use if I am using a 2 gallon backpack sprayer. I do not have a hose end sprayer because I don’t have the extra funds right now to purchase one.Anyway, how much dextrose and how much NPK plus Calcium product per gallon.How much BioAg probiotic EM per gallon in a back pack sprayer. I know I shouldn’t make the mist too fine because it could harm the beneficial microbes. Is this also true for the NPK+calcium , & the dextrose.Also, how much molasses would I add per gallon when I am spraying the EM/BioAg?Thanks for converting these amounts for us backpack sprayer folks. Hopefully, next year I can invest in a hose end sprayer.Elena

    • Phil on March 25, 2014 at 10:45 pm

      -The NPK is 1:50 parts water, so 5 Tbsp per gallon of water.-The dextrose is used at the same rate as the NPK, so just put the same amount of dextrose as NPK.-The Bio Ag is at least 1:250 if possible, so 1 Tbsp per gallon of water. But when using a backpack sprayer, I have gone down to 1:125 just to save my back, so 2 Tbsp per gallon of water.-The molasses is used at the same rate as the Bio Ag, so just put the same amount of molasses as Bio Ag.The mist can be very fine on the NPK and dextrose. I would come through a day or two later with the Bio Ag and molasses, and then the mist shouldn’t be as fine.

      • Elena on March 30, 2014 at 4:59 am

        Thank you very much! I appreciate your thorough response.

  3. Ellen Erickson on June 2, 2014 at 9:22 pm

    hmm, which Coke is good for applications… I really do not drink this stuff but anything for plants LOL

    • Phil on June 3, 2014 at 2:24 pm

      Any cola with sugar is good, although if we’re trying to stay away from GMOs, we’d want to go with an organic cola.

  4. Deitra Brunner on March 2, 2015 at 11:06 pm

    I plan to purchase the dextrose for the garden, but I was reading about the benefits of blackstrap molasses on another website and was wondering if the brand that you sell is ok for direct human consumption or is it just for garden use.

    • Phil on March 3, 2015 at 12:57 am

      Hi Deitra, the molasses is made for human consumption.

      • Deitra Brunner on March 3, 2015 at 3:41 am

        OK thanks, I just wanted to make sure I am thinking right (I mean, that may not be the best indicator; but one out of a whole bunch is better than none–lol).

  5. Lynne on March 19, 2015 at 8:33 pm

    In the section above, titled “Who Needs this the Most”, in the second paragraph, do you mean “inexpensive” rather than expensive?

    • Phil on March 20, 2015 at 1:03 pm

      Indeed. Fixed. Thanks!

  6. Bob V on May 26, 2015 at 3:53 pm

    why did you stop selling dextrose on your website ?

    • Phil on May 26, 2015 at 8:35 pm

      People weren’t buying enough of it.

  7. Bruce Turner on May 18, 2016 at 5:06 pm

    Will the molasses attract unwanted animals, ants or flying pests?

    • Phil on May 19, 2016 at 11:42 am

      I’ve heard people say that molasses can both repel ants and attract them, but when applying it at 1/2 cup per 1000 square feet as I recommend, I’ve never had any complaints, or any problems myself.

  8. Gary Schilling on November 5, 2016 at 5:02 pm

    How early in vegetative life {seedlings} can you start using molasses ?

    • Phil on November 7, 2016 at 10:24 pm

      Good question, I’ve never seen any info on it. I use it from the beginning.

Leave a Comment