3.0 Soil Building Kit
Best organic amendment kit for gardeners crafting custom, nutrient-dense soil blends.
Create your own premium soil with the BuildASoil 3.0 Soil Building Kit, our most popular soil now available for DIY creation. This kit contains a curated blend of high-quality organic ingredients designed to optimize plant growth and health. It includes BuildASoil Basalt, Montana Grow Volcanic Tuff, Colorado Bio Char, Big 6 Micronutrients, Fish Bone Meal, Rice Bran, Kelp Meal, Mustard Seed Meal, Gypsum, Oyster Shell Flour, and Camelina Meal. Simply mix the kit with peat moss, pumice, compost, and rice hulls according to the provided ratios to create your ideal soil blend for potting, vegetable gardens, or flower beds.
$36.00
Owner Satisfaction
4.6
/ 5
Category Rank
516
/ 1247
#516 in Soil
Price vs Category Average
-29%
Below average
Who it's for
- Gardeners seeking a comprehensive, all-in-one soil foundation
- Growers prioritizing natural plant health and microbial vitality
- Eco-conscious gardeners committed to sustainable, organic practices
Who should skip it
- Budget-focused growers preferring lower upfront costs
- Novices intimidated by advanced soil science principles
- Gardeners needing the immediate results of synthetic fertilizers
Performance breakdown
Nutrient Density
A comprehensive profile of minerals and organic inputs for vigorous growth.
Mixing Complexity
Requires manual labor and precise ratios to achieve the perfect blend.
Ingredient Quality
Premium organic components sourced for maximum soil biological activity.
Scalability
Flexible sizing options accommodate everything from small pots to garden beds.
Soil Customization
DIY approach allows growers to tailor soil structure to specific plants.
Biological Diversity
Diverse amendments foster a thriving ecosystem for long-term plant health.
Key Specs
6 lb Bag Mixes Into 10 Gallons (1.33 Cubic Feet) of Soil
15lb Bag Mixes Into 25 Gallons (3.33 Cubic Feet) of Soil
40lb Bag Mixes Into 68 Gallons (9 Cubic Feet) of Soil
Use 7-9.5 ounces per gallon of soil you're making
For larger batches
90-120lbs per cubic yard or 3.33-4.44 lbs per cubic foot
Features
- Contains a blend of organic ingredients for optimal plant growth.
- Allows for DIY soil creation, personalizing your gardening mix.
- Can be used to improve the quality of existing potting soils.
- Provides essential calcium, trace minerals, and diversity to soil.
What customers say
Customers consistently praise the 3.0 Soil Building Kit by BuildASoil for its remarkable effectiveness in transforming soil health and promoting robust plant growth. Many users highlight the noticeable improvements in plant vigor and yield, attributing their success to the high quality components within the kit. While some consider the initial investment significant, the long term benefits and superior results often lead to a strong perception of value, making it a worthwhile purchase for serious growers seeking premium soil amendments.
Know before you buy
To complete the 3.0 mix, you will need to source your own peat moss, pumice, compost, and rice hulls. These base materials provide the necessary structure and aeration that the kit's nutrient amendments require.
Yes, you can use the kit to improve existing potting soil. Simply incorporate the dry amendments into your current mix to boost calcium, trace minerals, and overall biological diversity.
You should use between 7 and 9.5 ounces of the kit per gallon of soil you are creating. For larger projects, use approximately 3.33 to 4.44 pounds per cubic foot of soil.
Yes, the 3.0 Soil Building Kit is designed to be a versatile, high-quality organic base suitable for vegetable gardens, flower beds, and container potting.
The kit provides a comprehensive blend of organic amendments, including basalt, volcanic tuff, biochar, and various meals for micronutrients and calcium. It is designed to create a nutrient-dense environment, though you may choose to add specific liquid supplements later depending on your plant's growth stage.
Still have a question?
Ask Hayley anything about this product before you decide.