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Farm Fuel  |  SKU: PGM103

Mustard Seed Meal

Rated 4.9 out of 5
Based on 113 reviews
$45.00
Shipping calculated at checkout.
Size

Mustard Seed Meal - 10 lb (Milled) is backordered and will ship as soon as it is back in stock.


Quality First

BuildASoil is committed to sourcing the highest quality ingredients you can trust. over 10,000 Five Star Reviews and over a decade in business

Delivery and Shipping


BuildASoil Shipping Policy

Notice: Each product page displays accurate estimated delivery windows based on real-time fulfillment and carrier schedules.




Shipping Options

At checkout, you’ll be presented with the following options:

  • BuildASoil Shipping (Free)
     Our complimentary shipping method for qualifying orders. We choose the most cost-effective carrier and shipping method. Delivery may take up to 10 business days. Most items qualify when you purchase two or more eligible products. Some qualify individually.

  • Standard Shipping
     A paid option where we ship using standard ground services, without prioritizing fulfillment speed.

  • Standard Shipping: Rushed Out the Door!
     Includes everything in Standard Shipping, plus guaranteed same business day shipment if the order is placed before our cutoff time.

  • Get It Fast
     Our expedited service. Orders are shipped via 2–3 day methods and prioritized for fulfillment, with most leaving the same business day (not guaranteed).

  • Overnight It
     For urgent deliveries, this ships your order via overnight service with immediate fulfillment, within 24 business hours..

  • FedEx Freight (Economy or Priority)
     Large or heavy orders that qualify for freight shipping will be offered these options. All freight ships via FedEx Freight unless otherwise arranged. If you require a non-liftgate delivery (e.g. dock or forklift available), please contact us in advance.




Carriers Used

We primarily ship with FedExUPS, and USPS. If you need a specific carrier for a specific shipping address, please reach out to us by phone at 855-877-7645, or send us an email to support@buildasoil.com, which will create a customer support ticket. You also have the option of submitting a ticket through the support.buildasoil.com site.




PO Boxes

Orders addressed to PO Boxes often incur additional costs and are ineligible for free shipping. To avoid delays or fees, we recommend using a physical shipping address whenever possible.




Shipping Outside the Lower 48

We do ship to Alaska, Hawaii, Puerto Rico, Guam, the U.S. Virgin Islands, and other U.S. territories.
Free shipping does not apply to most large or bulky items sent to these locations. Standard or custom rates will be calculated at checkout. Contact us if you need a freight quote for outlying areas.




Vendor-Fulfilled Items

Some products ship directly from our vendor partners. These will display accurate estimated ship dates on their product pages. Any concerns or delays with these items should be directed to support@buildasoil.com.




Freight Shipments

Freight shipping involves delivery of pallets via box trucks or semi-trailers.
By default, all freight is assumed to require liftgate service. If you do not need a liftgate, please notify us prior to shipment.

Inspect your freight order before signing the delivery receipt.
Count the number of packages and check for visible or concealed damage. Do not sign unless everything is accounted for and undamaged. Signing a receipt waives the right to claim missing or damaged freight unless noted at delivery.




Order Tracking

Tracking information will be emailed to the address on file once the order ships.
If you do not see the tracking email, visit https://buildasoil.aftership.com/ to locate your order using your email and order number. You may also contact support@buildasoil.com for assistance.




BuildASoil Shipping Protection

You can add BuildASoil Shipping Protection at checkout. This low-cost option insures your order against loss, theft, and damage.
If something goes wrong during transit, your replacement order will be fast-tracked through our claims system.

Even when protection is purchased, we request that you submit photos, videos, and any supporting evidence of the issue. This allows us to file formal claims with carriers and ensure the long-term success of our shipping network.




Claims Policy

All claims must be made via support@buildasoil.com.
 We do not accept claim submissions via phone.

To process your claim, we require the following:

  • A clear description of the issue

  • Photos or videos documenting damage, missing items, or incorrect products

  • Images of packaging, shipping labels, and box condition if relevant

Do not discard any shipping materials or products involved in the claim—carriers may require inspection.

Claim Deadlines:

  • Visible or Concealed Damage / Missing Items: Report within 5 business days of delivery

  • Incorrect Products: Report within 30 days of delivery

  • Lost Packages or Incorrect Delivery: Report within 30 days of shipment date




Carrier Responsibility Disclaimer

Once an order has left our facility, BuildASoil is not responsible for carrier-related issues such as delays, misroutes, or mishandled deliveries.
We will support claims to the best of our ability, but the final resolution is subject to carrier approval.

Additionally, we maintain zero tolerance for mistreatment of delivery drivers, delivery dispatchers, or anyone with the shipping/freight carrier. Any reported conflict resulting in a failed delivery will result in the order being refunded, minus the cost of shipping and a 15% restocking fee.

Description

BuildASoil's Favorite Mustard Seed Meal Fertilizer is approved for organic production. Our fertilizer is rich in natural plant nutrients and amino acids. Its formulation is 100% plant-derived allowing for a unique organic composition that selects for beneficial microbes in the soil. This, coupled with its highly bioavailable nutrient profile drastically improves crop nutrient uptake and therefore overall crop performance. There are no additives or preservatives used during manufacturing. This creates a unique, high-quality product that goes unmatched in the marketplace.

BENEFITS

  • Fertilizer (NPK 4.50-1.50-1.15)
  • Sourced from non-GMO seed
  • Great source of organic material in your garden
  • Easy to use and safe to handle
  • Suitable for conventional and organic farms and gardens
  • Enhanced soil biology
  • High in Sinigrin Glucosinolate

Powder Or Pellets?

We plan on using Pellets for soil mixing and powder anytime even coverage is needed across the soil surface. Read more about the powder vs pellets below.

Caution:

  • Can be harmful to young seedlings, be careful.
  • Worms will move away from mustard meal when top dressed and if they can't move away it will be toxic to them.
  • This stuff is potent and we are still learning, so proceed with caution if you are going to go hard.

White Papers On Using Mustard Seed:

Effectiveness of Defatted Mustard Meals Used to Control Fungus Gnats

The Many Uses Of Mustard Seed

EFFICACY OF ORIENTAL MUSTARD (Brassica juncea L. Czern.) SEED MEAL FOR WEED AND DISEASE CONTROL IN TURF

Mustard Seed Meal for Management of Root-knot Nematode and Weeds in Tomato Production

Using High Glucosinolate Mustard as a Cover Crop to Reduce Weeds and Disease

Biologically Active Compounds in Mustard Seeds: A Toxicological Perspective


PELLETS vs. MILLED

Mustard Seed Meal Fertilizer is available in two different forms: Pelleted and Milled. Each of the two forms are from the exact same formulation, but have different uses and benefits.

PELLETS

Mustard Seed Meal Pellets are best used in applications where a slow release of fertilizer is desired. The pellets are less distributed throughout the soil and therefore break down at a slower rate. This is ideal for situations where long-lasting, slow release fertilizer is desirable. Application can be done by hand, or by pellet spreader/injector. The pellets are strong and hold together well, minimizing breakage in mechanical spreaders. In most cases, this is the most desirable form for top- or side-dressing, potted horticulture and backyard gardeners.

MILLED

Milled Mustard Seed Meal Fertilizer is simply a result of grinding and crushing the pellets into a powder-like consistency. When applied to the soil, Milled is better distributed throughout the soil profile. This allows for a more uniform availability and quicker release of nutrients. It is also more rapidly consumed by microorganisms, quickly creating a healthy living soil. It is best applied by hand or by a drop spreader (mulch/compost spreader). Careful consideration should be taken while using mechanized spreaders as the material has a high oil content that may cause clumping or clogging of machinery. It is best spread during days with mild temperatures and low humidity to avoid clumping. Milled is recommended for most pre-plant applications on the farm, garden, or container growing. As always, be sure to allow for a minimum three-week plant back with all pre-plant applications.

    Applications of Mustard Seed Meal selects for specific bacterial and fungal communities in the soil. These specific communities work to improve nutrient availability for the crop, reduce plant stress, increase plant vigor, and improve yields. Scientists nation-wide have reported a consistent promotion of soil fungal and bacterial communities containing Trichoderma spp., Streptomyces spp., Pseudomonas spp., Anthrobotrys spp., Plectosphaerella cucumerina, Dactylella oviparasitica, Paecilomyces lilacinus and many more. Each of these beneficial microbes play a crucial role in the complex interaction occurring between soil and roots creating a long-lasting symbiotic relationship that aids in the enhanced production and protection of crops.

    Check out the activity after adding to our in store worm bin! All the gnats are gone now too.

    Mustard Seed Meal in worm bin

    Questions?

    We are here to help and our entire staff knows how to grow. Just reach out via chat, email or even phone. We are passionate about growing and want you to succeed.

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    average rating 4.9 out of 5
    Based on 113 reviews
    • 5 Stars
      104 Reviews
    • 4 Stars
      4 Reviews
    • 3 Stars
      4 Reviews
    • 2 Stars
      1 Review
    • 1 Star
      0 Reviews
    90% of reviewers would recommend this product to a friend
    Customer photos and videos
    113 Reviews
    Reviewed by Jerome A.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5
    Review posted

    MSM

    Good stuff. Pair it with the other product Build a Soil sells and you'll never have gnats.

    But the MSM works well alone. Adds a positive soil enhancement also.

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    Reviewed by Hollie
    I recommend this product
    Rated 5 out of 5
    Review posted

    5 Stars

    Good

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    Reviewed by Dan F.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5
    Review posted

    Mustard seed meal

    Product arrived quick and safe very happy

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    Reviewed by Reese B.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5
    Review posted

    Must have

    absolutely love this product! My plants are always happier when used.

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    Reviewed by Walter C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5
    Review posted

    Mustard seed meal

    All of there buildasoil products are good

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