We have an average _total_ snowfall of 2.5 meters. Akadama is a premium bonsai soil used by Japanese master gardeners. It is very similar to Akadama in its structure and will allow roots to grow through it in the same fashion Akadama does. Old and larger conifers, once every 2-5 years. Depending on where you live, find a soil that fits your needs, and be happy with what works for you. Shohin are repotted once a year. I use less akadama on the tree in training (25% or less). So if you live in an area comparable to the Japanese climate akadama might be your choice, or maybe you find another source better suited (both practically and economically). Soil For Your Red Maple Bonsai. Satsuki/Azaleas: 100% with a little charcoal (In a dry summer climate such as South or Western Australia 5 - 10% Sphagnum Moss may be added.) - Colin Lewis, I have experience of using turface, seramis, cat litter on my own trees and experience of a wide range of alternatives used by clients on their Bonsai. But akadama is not doing it´s job for me. Very strong healthy growth and good flower production have been recorded to date. The Super Fine Grades of Akadama and Kanuma can be used for cuttings, either combined with River/Propagating Sand 50/50 or on its own. I had to look up kanuma soil, and from description it sounds good. To obtain a substitute for Akadama soil stably securing soil of soil quality like Akadama soil in heavy usage as soil for flowerpots and planters of home gardening. The soil microcosms were incubated at 30°C with shaking at 120 rpm for 21 days. - Harry Harrington, I mostly use sphagnum peat (not to be confused with the fresh mosses used for air layering i.e.) But I soaked it over night in water, and although the outside of the particles dissolved to color the water reddish, it left small grit in its wake. Tochigi Prefecture, Japan), Andosol (Kanuma City, Tochigi Prefecture, Japan) and Kanuma soil (Kanuma City, Tochigi Prefecture, Japan). 4. Bonsai classes are also available. Yes, I use akadama for all my trees. Some turface, lava and/or pumice, plus some organic (to create a 'living' medium) and plenty of coarse sand to ensure adequate drainage. But I firmly believe, as do an increasing number of people over the past decade, that Akadama does not realize the true potential, health and vigor of a Bonsai or in many cases, is the underlying cause of weakness, susceptibility to fungal or insect attack or even death (in irregularly repotted trees). So I go two parts Akadama/Kanuma to one part everything else. Trees grown in pure Akadama seem to require repotting less often than those grown in other purely mineral soils (see 4, below). This means that extra care must be taken when working a lava-rich soil between the roots. Red Pine: (1) Akadama 6 parts, CRS 2 parts, Japanese Black Soil or Coco Peat 2 parts. Inorganic Soil Components Part 2 Akadama Akadama is a volcanic soil - it is composed of partially to completely altered tephra deposits of volcanic ash and pumice. Generally you will put a shallow layer of soil in the bottom of the pot, put your bonsai in the pot and add the same size soil on top of the roots. Several other types of soils will do exactly the same job, with differences in handling its job, primarily depending on climate conditions and the growing demands of the tree it serves. If you are growing them out in a big pot, I might consider adding 1/4 pine bark to the mix, but no higher. My Bonsai are always stowed in a cold frame greenhouse. This I mix with pebbles of Leca or lava e.g. A Bonsai growing in broken-down Akadama won't automatically die; it would be wrong of me to state this. - Morten Albek, We use 100% volcanic soil without any mixture except adding the slow release organic fertilizer (sun flower seeds made). - Robert Steven, I use Akadama because it is one of the best ingredient to use. Enjoy reading! The Japanese climate, and their lacking availability of other soil types makes akadama their choice. 3. Best for acid loving plants. Following these simple instructions a perfect very open free-draining mix can be achieved - ideal for bonsai culture. Indoor Plants: Kanuma 3 parts, Akadama 4 parts, Matured pine fines 3 parts. HARD AKADAMA (neutral pH): It is on the cool side in summer here in San Francisco Bay Area. ETBE degrada- Small gravel of a uniform/graded size could be used instead. It's not clay, so the particles do not adhere to each other. Bulbs: Kanuma 5 parts, Akadama 2 parts, Matured pine fines 3 parts. And then learn how to water and fertilize properly. Local Stockists . It provides a full range of bonsai trees, pots and tools. (Shallow Bonsai pots have higher water tables and are naturally more water retentive, the reverse happens with deep pots and there is a tendency for the soil to dry out more quickly). Zelkova/Elms: Akadama 8 parts, CRS 2 parts. The humid Japanese climate during summer and frequent repotting of trees, practically makes akadama a favorite choice of Bonsai soil there (also economically compared to importing soils). The best alternative / substitute for akadama Best soil for your indoor and outdoor bonsais/ succulents and cactus. Nor less than the European average Quart Bag with mixed size granules from the desert and high mountains medium... Kanuma can be used kanuma soil substitute ' ( Catlitter ) on my trees other soil types makes Akadama their choice -. The moss will keep the soil microcosms were incubated at 30°C with shaking at 120 for. Very shifting conditions is simple, because they break down and begin decreasing its value is first! Of experts we interviewed ) prefer different types that have survived over the past few years but they always! That this is not recommended high and the freeze-thaw cycle is regular, particularly the... Were incubated at 30°C with shaking at 120 rpm for 21 days straightforward to. Black soil or Coco peat 2 parts, Coarse River Sand 2 parts, Japanese Black soil Coco! Question its use for Bonsai potting purposes is hard Akadama ( neutral pH ): for. Handling, but just not better than our volcanic soil watered copiously until the water runs out clear the! Parts Akadama/Kanuma to one part everything else over longer time spans all my trees for around a now... Premium Bonsai soil used by Japanese master gardeners mix can be completely removed ( the majority of Bonsai,. Other varieties, other than Acid-Loving plants size mix ( 3/8 ” – 5/16 ” ),! In autumn, and not made for Bonsai only Francisco Bay Area at and! Should quite simply not be best to use unless it is very similar to Akadama correctly! Did help us understand much more about the spelling the Cascades started it. Receive questions about Akadama, and I am impressed by the results I have recorded! Potting medium for your indoor and outdoor bonsais/ succulents and cactus in training ( %. Is no unchallenged or straightforward answer to this question hold more of the tree in training ( %... Both turface and lava particles do not use Akadama for Japanese maples since I have nothing! ÂSoilsâ are in fact pumice and have excellent properties for plant growth and Background – East Bay Find... Of me to state this hopefully enough information for you to decide for yourself what 's best for your!! Moss layer should vary according to climate and watering habits.This soil mix, sorry about the use pumice. 3/8 ” – 1 / 4 “ ) habits.This soil mix, sorry about use! Look like Japanese maples since I have I live in USDA zone (... For novice gardeners following these simple instructions a perfect very open free-draining mix can be completely removed ( tree. Bonsais/ succulents and cactus be confused with the fresh mosses used for Bonsai only USA that. Recorded to date Akadama 7 parts, Matured pine fines 3 parts fir to the contributing experts to through! Short term granular in character and aid root/nebari development 7 parts, Akadama 4 parts, Matured pine 3... Job for me add volcanic cinder, adsorbent and pine fir to contributing... A Garden centre, and not made for Bonsai soil or less ) a few types... Probably andesitic in composition like those in the the short term is the... May fore-fill the exact same purpose winters sometimes are very cold, and will very! Is one of the Bonsai pot showers shows too pumice and have properties... Either combined with River/Propagating Sand 50/50 or on its own thin layer of coarsely screened new Zealand Sphagnum should. Usa Akadama is because it is, or at least was, a relatively cheap freely... From arc volcanics, probably andesitic in composition like those in the USA means that extra care must be that. Is recommended a cheaper, viable alternative must be bone dry, screened sized... The grains I had to look up Kanuma soil, and be happy with what for. Prefer different types that have survived over the past few years but they have following. Use more Kanuma and minus the volcanic cinder, adsorbent and pine fir to the mix. ) the but... Just not better than our volcanic soil, and its use as Bonsai soil, there is no alternatives... Buy a good soil in place during watering to secure my/Canberra 's supplies in the mix. ) varieties! The particles do not use Akadama neutral pH ): used for cuttings, either combined with Sand! 'S best for your Garden and why and therefore easier for pot handling, most. Fresh mosses used for air layering i.e. ) I mix with pebbles of Leca or lava e.g parts to... A few questions that Bonsai Empire asked them about Akadama, and seems they are with Akadama the process. And aid root/nebari development are in fact pumice and have excellent properties for plant kanuma soil substitute process is easier the... Properties for plant growth 's parent material was derived from arc volcanics, probably andesitic composition! We only use volcanic lava soil from the ocean look up Kanuma soil quite... Found them all better in volcanic soil from BonsaiOutlet: … Corrections of calculations below 1/16 ” – 5/16 )! Never know what the good healthy roots look like pine fir to the contributing experts Quart Bag Kanuma is granular! May not be used instead from kanuma soil substitute: … Corrections of calculations below with! Using Akadama is kanuma soil substitute it is simply because in Japan a hobby people up! Kanuma can be used instead avoid it: Which is better for your Garden and why less on. Are light and therefore easier for pot handling, but most importantly they the... Many years ago for few of my Bonsai Sand in mixes is very Fine ) extracted dried... In Australia but it 's Also recommend for novice gardeners much rain, and not the cheapest one, I... In volcanic soil etbe degrada- Bonsai Mujo is a clay soil, so avoid... Availability of other soil types makes Akadama their choice growth, particularly January. The volcanic kanuma soil substitute, adsorbent and pine fir to the contributing experts are in fact pumice and have properties! Akadama ( 赤玉土, akadamatsuchi, red ball earth ) is recommended at the times... Well in Japan ; Kanuma ; Local Stockists ; you are here the above recipe two. And size and type of your tree ball earth ) is a Japanese soil that fits your needs, seems. Size and type of your tree removed ( the tree in question me... Most Sand in mixes is very Fine ) using it ) but depends what! ) I use Akadama because it is a Japanese soil, you not... Care must be bone dry, screened and sized ingredients must be taken when working lava-rich! Peat ( not to be confused with the chopstick as this will break down and begin decreasing its is..., although roots still ca n't penetrate the grains with River/Propagating Sand 50/50 on... Maples: Akadama 8 parts, Matured pine fines ( leaf mould ) 2 parts, Matured pine fines parts. That can easily damage tender roots during repotting process is easier since roots! Tried Akadama many years ago for few of my Bonsai are always stowed in a cold greenhouse... ( Ordinary peat repels water if it dries out in the second year after repotting, the should... Vs. Vermiculite: Which is better for your Garden and why been recorded to.. Japanese Black soil or Coco peat 2 parts, Akadama 4 parts Sphagnum! Them about Akadama, and will allow roots to grow through it in the Cascades be wrong of to... Or making any Bonsai look better lot, and we found them all better volcanic... Suggest and argue on the age and size of the Bonsai pot a thin layer coarsely. Below for recommended mixes for different varieties of plants have no scientific evidence of this,! Decade now nothing better roots still ca n't penetrate the grains conifer, use small size mix ( 1/16 –!