Shohin Size Professional Boon Bonsai Soil Mix
SuperFly Bonsai's Shohin & Mame (small tree) Professional All Purpose Bonsai Soil Mix - Premium Blend - Sieved to 1/16" - 1/8" grain.
This mix is the most commonly used and accepted mix by bonsai professionals around the world. In some circles this is known as boon mix or franks mix in the North East United States. This is the mix I use on nearly all of my personal trees.
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 - is a clay like component that is excellent at binding nutrients, it holds water and it breaks down over time allowing roots to grow in its place.
- 1/3 Pumice (japanese or usa) - is a volcanic byproduct that is excellent at retaining water.
- 1/3 Black Lava Rock - is also a volcanic byproduct that is excellent at promoting air to the root area. Black lava also adds structure to the soil.
This is very important in a soil mix. This blend is sized from 1/16" to about 1/8" 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.
Please Note: It is possible we will use different types of pumice or lava for this mix which could look slightly different than pictured. The biggest difference would be the use of American pumice which is much more white than the Japanese pumice which is usually a tan color. The type of lava or pumice used will not influence the performance of the mix.
To me, the mix is a little heavy on the black lava. I like to have Akadama because it lets me know when it dries it’s time to water, but all the black lava in this mix sits at the top. Great shohin size though.
Looks really good for most shohin. Would like see more of the smaller particles for small to name size. Can you tell me the ratio of particle sizes in the mix. Not by particle type just by size for the mix as a whole. Members in the club are curious. Thx
Great customer service too!
Perfect size soil for my shohin!
One week after repotting a young juniper from regular organic soil, I’ve seen more vigorous growth. Plus it looks way nicer lol
QUESTIONS & ANSWERSAsk a Question
Is this all you use in the pot besides the thin gravel bed at the bottom for drainage? I have an autumn moon maple.
If you have a shohin sized tree then yes this is all you will need. You will need mesh at the bottom of the pot so the soild does not fall through.
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1670 S. Cameron Street
Harrisburg, PA 17104
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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 firstname.lastname@example.org 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.
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