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4.5 (123)

Mustard Seed Meal

Name: BuildASoil Mustard Seed Meal - Mustard Seed Meal
Brand: BuildASoil
SKU: 41577793028284
Price: 42.0 USD
Availability: InStock
Rating: 4.8384 (91 reviews)

4.5 (1,234)

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Color

Black

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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 s...

Reviews

4.8

99 ratings

As advertised!

Jason · September 30, 2025

Found my new love....

Not sure why, but this stuff causes a great amount of micorrizia to form, or possibly it is fungal. But the plants love it. So far when top dressing and digging it in an inch or so it hasn't caused any burn problems. Top dressed my cucumbers and they greened right up. They are in an earth box and are running out again so I will be adding more. Along with some of the ProMix.

Martin · June 27, 2025

Little helper

I’ve been using the mustard seed for about 2 1/2 to 3 years now both indoor and outdoor I haven’t gotten any unwanted bugs so I assume it’s doing its job and I’ll take anything that will help against unwanted pests.

Scott · May 31, 2025