Professional Bonsai Soil Mix - Premium Blend

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SuperFly Bonsai's Professional All Purpose Bonsai Soil Mix - Premium Blend

This mix is the most commonly used and accepted mix by bonsai professionals around the world. In the Northeast United States, this is sometimes known as "Boon Mix" or "Franks Mix". 

Is It Dirt?
No. Bonsai trees do not like "dirt" and will in most cases die if left in dirt over long periods of time. This is substrate.

What Is In It?
The primary components are Akadama, Pumice and Black Lava. We also added a bit of Horticultural Charcoal. These components have been found over time to provide the best drainage, water retention, nutrient retention and air circulation possible to promote healthy bonsai.
• 1/3 Japanese Hard Akadama - clay like component that has excellent binding nutrients, it holds water and it breaks down over time allowing roots to grown in its place.
• 1/3 Japanese Hyuga Pumice - volcanic byproduct that is excellent at retaining water.
• 1/3 USA Black Lava Rock - volcanic byproduct that is excellent at promoting air to the root area. Black lava also adds structure to the soil.
• Horticultural Charcoal - added to harbor beneficial bacteria and add humic acid in the soil.

Particle Size
This is very important in a soil mix.  This blend is sized from 1/16" to about 1/4" in size.  This allows air to the roots while maintaining moisture needed by deciduous trees.

How Do I Use It?
This is "real" bonsai soil. Be sure your bonsai pot has holes in the bottom covered by bonsai mesh.  Each micro climate may require different amounts of water. On very hot/dry days you may need to water two/three times while around freezing you may need to water every week or two. Push your finger 1" into the soil and feel for moisture. If it is dry, it is time to water.  Paying attention to your bonsai's moisture level is very important.  When potting into a new mix, the tree will use water at a different rate and the soil will dry at a different rate. Pay Attention!  Also, be sure to repot at the proper time of year for your climate and type of tree.

Customer Reviews

Based on 163 reviews
keith lentsch (Cheektowaga, US)
Superfly pro mix

Best bonsai soil I can find ... Wish it came in bigger bags

Liam Buehrle (Lewes, US)

It works great on junipers

Mike Hiras (Frenchtown, US)

Professional Bonsai Soil Mix - Premium Blend

Oscar Guerrero (Everett, US)

Professional Bonsai Soil Mix - Premium Blend

Michael Vosper (Ankeny, US)



Ask a Question
  • When do i replant my bonsai? They are only 2-3 inches tall. Is it ok to your soil mix when they are this small or should i wait longer?

    There are too many variables when repotting trees for me to provide valid information.  Your climate, the type of tree, the time of year, the tree's health and several other factors come into play to safely repot a bonsai.  I suggest google searching for when to repot your specific type of tree.

    If you are dealing with seedlings, they should not be potted into this soil until the pots size is being reduced and the trunk thickness desired has been obtained.  If they are 2-3" in size, a standard good draining potting mix would likely be ideal for 2-3 years at least depending on the type of tree you are working with and the look of the bonsai you desire.

  • Would this work for a red oak bonsai? If not what would you suggest would work.

    This would work, but I would use our Deciduous Mix as it is specifically mixed for deciduous trees.

  • Have a dwarf jade bonsai that desperately needs new medium & pruning. I lived in Fl & it was outside for last 15 years, my girlfriend gave it to me 10 years ago, she never pruned it so it's weeping. I repotted into slightly larger bonsai pot about 8 years ago using wrong medium (probably soil/cactus mix; I knew nothing about bonsai). It's been doing well. Moved to WA state two months ago, had it carefully shipped, did wonderful with shipping but is now an inside plant with a lot of bright light but in a much drier environment. I will put it where it gets great sun as soon as I repot it. Its doing well but has no medium left just roots. Thinking of bigger pot, using your bonsai mix & pruning. Been researching & watching tons of videos, dont know if this is the right season to do this for this type of bonsai (portucalaria afra I believe is the name of the bonsai I have) HELP!!!

    Yes, now is the time.  Don't wait any longer.  Tropicals are best done in the heat of summer.  Pruning and repotting.


Thank you for your purchase. We hope you are happy with your items! However, if you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund, store credit, or an exchange. Please see below for more information on our return policy.


All returns* must be postmarked within thirty (30) days of the purchase date. With the exception of returns for broken/damaged items, all returned items must be in new and unused condition, with all original tags and labels attached.

*Plants + Trees Returns: By purchasing a tree from us, we assume you know how to properly care for the tree. Bonsai and other plants are alive and will die if not properly cared for. We have no control over how trees are cared for once in your possession. Therefore, by purchasing this tree, you acknowledge that we, the seller, provide no warranties expressed or implied after the tree is delivered. This tree is sold "AS IS" and this sale is considered final. No refunds or exchanges will be offered after the tree is purchased. We will only ship healthy trees. We will require a signature on most trees over $100USD. If the box arrives damaged, please take pictures and make note with the shipping company prior to signing. If you sign for the package, the sale is final.


For the easiest way to process returns purchased through our website, please visit:

For items purchased through Etsy, please include the item and invoice # and return to:
Superfly Bonsai
1670 S. Cameron Street
Harrisburg, PA 17104

For items purchased through Amazon, Walmart, or eBay, please visit the vendors website. Linked below is information from each vendor to get you started.
Amazon: click here
Walmart: click here
eBay: click here

Please note, you will be responsible for all return shipping charges.* We strongly recommend that you use a trackable method to mail your return.

*Certain returns may be eligible for shipping charge reimbursement. We reserve the right to refuse refunds on shipping charges based on reasons for return.


Once we receive your item, we will inspect the condition of the items and notify you that we have received your return. We will also notify you on the status of your refund after we've inspected the item.

If your return is approved, we will initiate a refund to your original method of payment. You will receive the credit within a few business days, depending on your card issuer's policies.


If you have any questions concerning our return policy, please contact us at:

*Management reserves the right to refuse a refund, exchange or the resale of any item based on the condition of the merchandise.

Shipping Policy

Order Processing

All orders are processed within 2 to 3 business days (excluding weekends and holidays) after receiving your order confirmation email. You will receive another notification when your order has shipped.

Plants + Trees Shipping: Shipping may be delayed to prevent the tree from sitting in a warehouse over a weekend or holiday. Most trees ship Monday-Wednesday. We do not ship trees to PO, FPO, or APO boxes. We also do not ship trees out of the continental US or to California.

Domestic Shipping Rates and Estimates

For calculated shipping rates: All orders (under $99 USD or Wholesale) will be presented with shipping options that are calculated based on the item weight, box size, and distance from our shipping location.  We currently only use Fedex.
Free Shipping: All RETAIL orders over $99.00 USD ship free within the continental USA. Free shipping will be the lowest cost option from FedEx.

In-Store Pickup

You can skip the shipping fees with free local pickup at our warehouse. We are located at:
1670 S. Cameron Street
Harrisburg, PA 17104

We will send you an email when your order is ready along with instructions.
Our in-store pickup hours are 10AM-4PM Monday-Friday. Please have your order confirmation email with you when you come.

International Shipping

At this time*, we do not offer international shipping.
*Shipping to Canada and Mexico will be available at some point in the near future. Check back for updates to this section.

How do I Check the Status of my Order?

When your order has shipped, you will receive an email notification from us which will include a tracking number you can use to check its status. Please allow 48 hours for the tracking information to become available.
If you haven’t received your order within a reasonable amount of time, please contact us at with your name and order number, and we will look into it for you.

Shipping to P.O. Boxes

FedEx: FedEx will only ship to P.O. Boxes with SmartPost, which we do not offer at this time. Click here for more information.

Refunds, Returns, and Exchanges

We accept returns that are postmarked within thirty (30) days of the purchase date. With the exception of returns for broken/damaged items, all returned items must be in new and unused condition, with all original tags and labels attached.
In the event that your order arrives damaged in any way, please email us as soon as possible at with your order number and a photo of the item’s condition. We address these on a case-by-case basis but will try our best to work towards a satisfactory solution.
If you have any further questions, please don't hesitate to contact us at

Large Orders

If you are a placing a larger order (over 30 bags of soil or many pots), it may be cheaper to ship via freight truck. If you are interested in pricing for this, please contact us here.

Show Pickup & The Superfly Express

We attend 7-10 shows a year (if not cancelled), mostly on the east coast. Please check our calendar to see if we may be attending a show close to your location, and we can arrange to bring your order for pickup at the show.  No minimum.

We started the Superfly Express shortly after the Covid-19 pandemic started.  We did this as a way to get products to wholesale customers with no shipping fee.  We basically will deliver your order on one of our trips to your area for free if the order is over $1000 and you are close to our route.  We will also deliver retail customers orders over $1000 if they don't want to utilizer our free shipping for whatever reason.  We currently only travel east of the Mississippi river and have 4 routes.
1.  New York/New England Area
2.  Ohio/Michigan/Illinois/Indiana Area
3.  Western virginia & NC/Tennessee/Alabama/Mississippi/Kentucky
4.  Maryland/Eastern Virginia & NC/SC/Georgia/Florida

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