Free shipping on any 2+ items - Excludes Bulk

BuildASoil  |  SKU: HSS107

BuildASoil Heady Start Seedling Soil Recipe

Rated 4.9 out of 5
Based on 108 ratings
Regular price $26.00
Size

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

Shipping Policy

Shipping is expensive, and it gets more expensive almost every year. We are not going to pretend otherwise. What we can tell you is that we work hard to find the most reliable and affordable way to get your order to you, and we pass along free shipping wherever it makes sense.

Free shipping on any order with two or more items. The one exception is bulk items, meaning the large or heavy products that have to move by freight or oversized parcel. If your cart qualifies, free shipping is applied automatically at checkout.

Why two items and not a dollar amount?

Most stores set free shipping at a dollar threshold. That works when you sell light things like clothing. We don't. We ship soil, amendments, and heavy real goods that are expensive and awkward to move, so a dollar minimum doesn't reflect what shipping actually costs us.

We are a small business with no outside financial backing, and we are not Amazon. We manufacture, pack, and ship everything in house so we can control quality, which means real people picking, boxing, taping, and labeling every order, and that means real jobs. When we ship a single item for free, the only way to cover it is to raise prices across the board, and we would rather not do that. Asking for two or more items on free orders lets us keep prices lower for everyone and keep shipping sustainable. We hate high shipping costs as much as you do, and this is the fairest way we have found to keep them down.

Delivery estimates

Every product page shows an estimated delivery window based on current fulfillment and carrier schedules, so you know what to expect before you buy.

Shipping Options
BuildASoil Shipping Free
Transit: up to 10 business days Handling: standard

Free on eligible orders with two or more items. We select the carrier and method.

Standard Shipping Paid
Transit: 3 to 7 business days Handling: standard

Standard ground service.

Standard Shipping: Rushed Out the Door Paid, slightly more
Transit: 3 to 7 business days Handling: same day, not guaranteed

Same standard transit, but we push it out the door the same day when we can.

Get It Fast Higher
Transit: 2 to 3 business days Handling: same day, not guaranteed

Prioritized fulfillment with faster transit.

Overnight It Highest
Transit: 1 business day Handling: ships ASAP

The fastest option we offer.

Pickup at Factory Store Free
Ready: within 24 hours Location: Montrose, CO

Bring your order confirmation and a valid ID.

FedEx Freight (Economy) Quoted
Transit: 2 to 9 business days

For large or heavy orders.

FedEx Freight (Priority) Quoted
Transit: 2 to 7 business days

For large or heavy orders, faster transit.

Carriers

We ship with FedEx, UPS, and USPS, and we pick the carrier that gets your order to you reliably at the best cost. We cannot guarantee a specific carrier unless you arrange it with us ahead of time.

PO Boxes

Orders to PO Boxes often cost more and usually do not qualify for free shipping. Use a physical address to avoid delays and added fees.

Outside the Continental US

We ship to Alaska, Hawaii, Puerto Rico, Guam, the Northern Mariana Islands, and the US Virgin Islands. Free shipping generally does not apply to large or bulky items going to these destinations, though Hawaii and Alaska have more flexibility depending on carrier policy. Rates are quoted at checkout or on request.

Canada

We ship select items to Canada. Canadian customers need to choose "UPS Standard Shipping to Canada" at checkout so your order clears customs cleanly and you avoid surprise brokerage fees. Orders placed with other methods can be delayed or rejected at the border.

Vendor-Fulfilled Items

Some products ship directly from our vendor partners and show their own estimated ship dates on the product page. Questions about these go to support@buildasoil.com.

Freight Shipments

Freight orders arrive on pallets by box truck or semi. We assume you need liftgate service unless you tell us otherwise.

Inspect every freight shipment before you sign. Count the packages and check for damage. Signing the delivery receipt confirms the order arrived complete and undamaged, so note any problem on the receipt before you sign it.

Full Truckloads

Full truckload (FTL) orders are custom quoted after checkout based on your location, order volume, and how the truck will be unloaded.

  • Let us know if you have a dock, forklift, or other unloading equipment.
  • Tell us if you need liftgate or manual unload service.
  • Email support@buildasoil.com ahead of time for an FTL quote.
Order Tracking

We email tracking as soon as your order ships. If it does not arrive, check buildasoil.aftership.com with your order details, or email support@buildasoil.com.

Shipping Protection

This optional add-on at checkout covers your shipment against loss, theft, and damage, and we fast-track those claims for replacement or resolution. Even with protection, photos and documentation help us move carrier claims along faster.

Claims

Send all claims to support@buildasoil.com. We do not process claims by phone.

Include:

  • A description of the issue
  • Photos or video of the damage, or of missing or incorrect items
  • Images of the packaging and labels

Hold onto the packaging and any damaged items until the claim is resolved, since carriers may require an inspection.

Claim deadlines

  • Damage or missing items: within 60 days of delivery
  • Incorrect products: within 60 days of shipment
  • Lost or misdelivered packages: within 60 days of shipment
Once Your Order Leaves Our Facility

We help with every carrier claim we can. But once an order is in the carrier's hands, we cannot control delays, damage, or misdelivery, and the carrier makes the final call on claims.

Description

Your seedlings and clones deserve the best start possible. Too often, growers struggle with seedling soils that dry out too quickly, stay too wet, or simply don’t provide the right nutrition. A poor start can mean weak roots, slow growth, and ultimately, plants that never reach their full potential.

That’s why we created Heady Starts Seedling Soil, a carefully crafted blend designed for perfect moisture retention, aeration, and nutrition. We started from scratch, sourcing only the highest-quality ingredients, including premium Canadian Sphagnum Peat moss and organic, non-buffered Char-Coir coco coir. With 33% perlite, this mix provides unbeatable texture, ensuring your seedlings and clones develop vigorous root systems.

What Makes Heady Starts Different?

✅ The Perfect Blend of Texture & Nutrition

  • Canadian Sphagnum Peat moss – High-quality peat for moisture retention and structure.
  • Organic Char-Coir Coco Coir – Premium non-buffered coco for balanced aeration.
  • 33% Small Perlite – Provides perfect drainage and prevents compaction.
  • BuildASoil Worm Castings – Nutrient-rich organic matter for strong plant development.
  • BuildASoil Basalt Volcanic Rock Dust – Packed with trace minerals for plant health.
  • Montana Grow High Available Silica Volcanic Rock Dust – Supports strong cell walls and resilience.
  • Charged Bio Char – Helps retain nutrients and boosts soil microbiology.
  • BuildASoil Mustard Seed Meal – Naturally biofumigates to suppress pathogens and larvae.
  • High Phosphorus Rice Bran – A powerful source of slow-release organic nutrients.
  • Kelp Meal – Provides natural growth hormones and essential minerals and soil structure.
  • Diamond K Gypsum – Enhances soil structure and provides calcium and sulfur.
  • Oyster Shell Flour – Adds long-lasting calcium to balance pH.
  • Calcium Silicate – Strengthens plant cell walls for improved vigor.
  • Camelina Meal – Rich in proteins and nutrients for healthy microbial activity.
  • Fish Bone Meal – Slow-release phosphorus for root development.

Instructions for Use

For Seedlings: Fill trays or pots, plant seeds, and water gently. Keep soil evenly moist for best germination.

For Clones: Soak Cuttings in Aloe Vera Water for 15 minutes up to 24 hours (if desired) and insert directly into moist soil. Check out the BuildASoil Extend-A-Dome for keeping your cuts humid and be sure to check out our youtube for how to clone.

Water as needed to maintain even moisture but avoid overwatering.

🚀 Whether you're starting veggies, flowers, or premium genetics, Heady Starts Seedling Soil ensures your plants get the best beginning possible. Give your seeds and clones the perfect foundation for explosive growth! 

See Heady Start Batch Testing Results

Specifications

  • Length (in)
    11.75
  • Width (in)
    5.5
  • Height (in)
    5.5

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.

Payment & Security

Payment methods

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

average rating 4.9 out of 5
Based on 108 ratings
  • 5 Stars
    101 Reviews
  • 4 Stars
    4 Reviews
  • 3 Stars
    2 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    1 Review
90% of reviewers would recommend this product to a friend
Initial Moisture Level
Rated 0 on a scale of minus 2 to 2, where minus 2 is Dry, 0 is Normal and 2 is Soaking Wet
Quality
Rated 4 out of 5
Results
Rated 4 out of 5
Customer photos and videos
108 Reviews
Reviewed by Mario M., from United States
Verified Buyer
I recommend this product
Growing Styles
  • Full Sun
Grow Sizes
  • Small Greenhouse Grow
Experience With Organics
1-4 Years
Rated 5 out of 5
Review posted

Seed starter mix

This is the best seed starting mix I’ve ever used.

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Initial Moisture Level
Rated 0 on a scale of minus 2 to 2, where minus 2 is Dry, 0 is Normal and 2 is Soaking Wet
Quality
Rated 5 out of 5
Results
Rated 5 out of 5
Was this helpful?
Reviewed by Eugene T., from United States
Verified Buyer
I recommend this product
Growing Styles
  • Indoors
Grow Sizes
  • Home Grow Tent
Experience With Organics
1-4 Years
Rated 5 out of 5
Review posted

sprouted in 4 days

Worked well, the first and only use so far, one little seed came up in 4 days. I make a depression in the "hot" soil to put my seed starter in, always have, used Espoma organic seed starter before, and sometimes plain coco coir. Soaked it well before adding a seed, put the seed in a hole about a quarter inch deep, kept moist with a squirt bottle, used only collected rain water. The two strange plants I seem to get from one of the BuildASoil amendments I use, I get at least one in every pot each time after I reamend.

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Initial Moisture Level
Rated 0 on a scale of minus 2 to 2, where minus 2 is Dry, 0 is Normal and 2 is Soaking Wet
Quality
Rated 5 out of 5
Results
Rated 5 out of 5
Was this helpful?
Reviewed by Jim C., from United States
Verified Buyer
I recommend this product
Growing Styles
  • Indoors
  • No-Till
  • Plastic Grow Pots
Grow Sizes
  • Home Grow Tent
Experience With Organics
10 Years Plus
Rated 5 out of 5
Review posted

Amazing

This product hand down is the best seed Starting mix I have ever used, I'm 60 and have been growing since I was 14, I'm prone to overwatering this mix seem to hold on to air really well, I would say it's almost idiot proff,

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Initial Moisture Level
Rated 0 on a scale of minus 2 to 2, where minus 2 is Dry, 0 is Normal and 2 is Soaking Wet
Quality
Rated 5 out of 5
Results
Rated 5 out of 5
Was this helpful?
Reviewed by Alex I., from United States
Verified Buyer
I recommend this product
Growing Styles
  • Full Sun
  • Fabric Grow Pots
  • Recycled Soil
Grow Sizes
  • Small Greenhouse Grow
Experience With Organics
1-4 Years
Rated 5 out of 5
Review posted

Outdoor ak47 serious seeds 20 gallon last years living soil grow. Popped a seed put it in the seed starter soil and we will see how it grows? I’ve had good success in the past outside.

A nice light seed starter soil.

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Initial Moisture Level
Rated 0 on a scale of minus 2 to 2, where minus 2 is Dry, 0 is Normal and 2 is Soaking Wet
Quality
Rated 5 out of 5
Results
Rated 5 out of 5
Was this helpful?
Reviewed by Andrew P., from United States
Verified Buyer
I recommend this product
Growing Styles
  • Full Sun
Grow Sizes
  • Commercial Grow
Experience With Organics
10 Years Plus
Rated 4 out of 5
Review posted

OK,but

The first bag of this I received was very good. The next couple of batches were less. There were small sticks in the mix that were not in the first bag. The third shipment, I received, was very wet and was smelling moldy and it was much more clumpy and more small sticks. I still think it will be useful but time will tell.

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Initial Moisture Level
Rated 2 on a scale of minus 2 to 2, where minus 2 is Dry, 0 is Normal and 2 is Soaking Wet
Quality
Rated 4 out of 5
Results
Rated 4 out of 5
Was this helpful?
Rated 4.9 out of 5
Based on 108 ratings