What is the NPK analysis for this product?

It has No NPK rating. It seems to be purely an irganic seed starting medium with no added fertilizers.

Does this product contain perlite?

Thanks for the question, yes! This mix is made up of sphagnum peat moss, perlite, vermiculite and Purple Cow Organics compost.

12 quarts weighs 25 lbs. Why does the description say 6 lbs?

Thank you for your question! The measurement you're referencing is for 12 quarts of water. Our Seed Starter Mix is less dense than water, so it weighs less.

how many cells in a starter tray will this bag fill?

Thanks for the question, the answer to that depends on what type/size tray you are using. There are 12 quarts in this bag, so I'd recommend finding the volume of the tray you'd like to use in quarts and dividing that number by 12 to find out how many bags you'll need.

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Purple Cow Organics Seed Starter 12 Quart Bag, All Natural and Organic, Fast Seedling Germination, Grows Strong Roots for Indoor Gardens, Raised Beds & Transplanting

Product ID: 742781455

Details

Brand
Purple Cow
Item weight
8 Pounds
Style
Soil
UPC
863431000236
Unit count
446.34

⚡up to 45 days fertility boost

🌱12 quarts nutrient-rich volume

♻️20+ years activated compost expertise

R3936

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Grow Bold, Grow Organic — Don’t Let Your Garden Miss Out!

LONG LASTING FERTILITY - Enjoy up to 45 days of balanced nutrients, ensuring your seedlings grow strong without extra feeding.
RAPID GERMINATION POWER - Kickstart your seedlings with a fine-textured, nutrient-packed blend designed for fast, vigorous growth.
ALL NATURAL ORGANIC BOOST - Harness the strength of Purple Cow’s activated compost, perfected over 20+ years for thriving roots.
RESILIENT SEEDLINGS GUARANTEED - Promotes sturdy root systems that withstand transplant shock and flourish all season long.
VERSATILE GROWING COMPATIBILITY - Perfectly formulated for seed trays, soil blocks, or small containers—flexibility for every indoor garden setup.

Purple Cow Organics Seed Starter Mix is a premium 12-quart, all-natural soil blend designed to accelerate seed germination and develop strong root systems. Featuring activated compost with over 20 years of proven success and built-in fertility lasting up to 45 days, this mix supports indoor gardens, raised beds, and transplanting with superior moisture balance and nutrient delivery.

Specifications

ASIN	B078H64Y68
Brand	Purple Cow Organics
Brand Name	Purple Cow Organics
Customer Reviews	4.5 out of 5 stars 637 Reviews
Included Components	Seed^Grass
Item Type Name	Seed Starter Mix
Item Weight	8 Pounds
Item weight	8 Pounds
Manufacturer	Purple Cow Organics
Manufacturer Part Number	00023
Model Number	00023
Style	Soil
Style Name	Soil
UPC	863431000236
Unit Count	446.34 Milliliters
Unit count	446.34 Milliliters
Volume	12 Quarts

Reviews

D**R

Organic seed starter

I was quite impressed with this purple cow organic seed starter. A lot of my seeds came up and I didn’t buy expensive seeds.

20.06.2026

J**N

Good product

Always works well

20.04.2026

D**M

Great Stuff

Great seed starting mix. Super high germination so far.

18.02.2026

J**B

Good

A little to compact but all seeds started.

28.06.2024

J**N

You'll like it too!

I like it, great quality and its reasonably priced. When I want the good stuff I get this.

21.03.2026

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