2. It is very similar to Akadama in its structure and will allow roots to grow through it in the same fashion Akadama does. You need to learn how to repot and remove and add soil properly. Tochigi Prefecture, Japan), Andosol (Kanuma City, Tochigi Prefecture, Japan) and Kanuma soil (Kanuma City, Tochigi Prefecture, Japan). Indoor Plants: Kanuma 3 parts, Akadama 4 parts, Matured pine fines 3 parts. Depending on where you live, find a soil that fits your needs, and be happy with what works for you. I can honestly say that the results were as good as they are with Akadama. My Bonsai are always stowed in a cold frame greenhouse. So why import a soil when very good and tested soils are at hand? For conifers from the desert and high mountains use medium size mix (3/8” – 5/16”). - Colin Lewis, I haven't used Akadama on my own trees for over 10 years now; there have been occasions a client has insisted on using it for deciduous trees (that can be bare-rooted) but I always refuse to repot a coniferous species into Akadama. Continued over page ... KANUMA (acid pH): Akadama is a clay soil, and will be very compact and poor of oxygen, harming the roots when broken down. This I mix with pebbles of Leca or lava e.g. - Boonyarat Manakitivipart (Bonsai Boon), No other mineral component is a substitute for Akadama because roots can penetrate each grain of Akadama but cannot penetrate other minerals. Finally, a big thanks to the contributing experts. Kanuma Premium Bonsai Soil (3.2 Quart) Kanuma Premium Bonsai Soil - Ready To Use. It is simply because in Japan it is, or at least was, a relatively cheap and freely available to enthusiasts. Have tried it and it doesn't do its job here. And understandably, they will not have reason to question its use. 5mm kanuma soil. I had to look up kanuma soil, and from description it sounds good. These mixes have worked very well in Japan for 100 yrs or so and if used correctly achieve wonderful results. - Morten Albek, No experience other than volcanic material. How to Repot a Satsuki Azalea Kanuma. Zelkova/Elms: Akadama 8 parts, CRS 2 parts. For deciduous, use small size mix (1/16”-1/4 “) and add 1 extra part of Akadama. The use of pumice for bottom layer drainage (5/16 “) is recommended. Whether you are newbie or advanced succulent grower, I am sure that you know the succulents are desert plants which mean they strive for soilless mix. Maples: Akadama 8 parts, Sphagnum Moss 1 … They drain perfectly if prepared correctly (see below). The first (bottom) layer is large (drainage) then 50/50 of medium and fine grade (depending on size of your Bonsai) for the remainder of pot. ETBE degrada- Products like Turface are soil amendments that the manufacturers recommend using at no more than 10 - 15 percent of the total volume. Australian Natives: This is currently an open field but Akadama has been used 100% on its own, mixed with Kanuma and/or gravel and other media with remarkably good effect. Some experts endorse the use of Akadama, while others (the majority of experts we interviewed) prefer different types of Bonsai soil. Large (Used mainly for drainage) Whatever soil type you may prefer, make sure it is heat treated to solve any issues with diseases or pests, and therefore it is advisable newer to use any soils from the garden. 家庭園芸の鉢土やプランターの土として多用される赤玉土のような土質の土を安定して確保出来るようにする。 - 特許庁 You didn't ask me, but looking at the soil you linked to, it contains sand. Enjoy reading! Some turface, lava and/or pumice, plus some organic (to create a 'living' medium) and plenty of coarse sand to ensure adequate drainage. - Harry Harrington, The answer is simple, because I do not use Akadama. It is kitty litter. - Robert Steven. We get cold in winter to get frost at night and rarely snow. IMPORTANT: PLEASE NOTE The moss will keep the soil in place during watering. Please refer below for recommended mixes for different varieties of plants. - Colin Lewis, The soil mix I use for all of my trees contains certain brands of cat-litter available in the UK (Diatomaceous Earth or 'Diatomite') and various amounts of chopped-bark, depending on the water retention required according to the tree species, vigor of the individual tree and even the shape of the Bonsai pot. I supply Akadama to these retailers around Australia so that you can pick up stock locally from them rather have me ship directly to you. Used for Coniferous, deciduous and other varieties, other than acid-loving plants. Or: Trees are paced under the sky from midd March to November. - Morten Albek, I did tried Akadama many years ago for few of my Bonsai. Either for protection for cold winds or for heavy raining periods. 1 liter bag. These two ‘soils’ are in fact Pumice and have excellent properties for plant growth. Orchids: Kanuma 6 parts, Matured pine fines (leaf mould) 2 parts, Coarse River Sand 2 parts. The proportions of organic and sand varies according to species. Buy a good soil in a garden centre, and not the cheapest one, because they break down too fast. They are light and therefore easier for pot handling, but most importantly they have the following useful properties: 1. The Akadama used for bonsai potting purposes is HARD Akadama. Many factors come into play when trying to say anything sensible about Bonsai soil (climate, tree-species, stage of development of the tree, etc); this article generalizes some of these factors to not over-complicate the issue even further. Bulbs: Kanuma 5 parts, Akadama 2 parts, Matured pine fines 3 parts. Black Pine/White Pine/Shimpaku: Akadama 7 parts, Coarse River Sand (CRS) 3 parts. Trees grown in pure Akadama seem to require repotting less often than those grown in other purely mineral soils (see 4, below). For many species native to my area (picea, larix, abies, native acer) I am resorting to organic and sand, with about 25 percent recycled akadama/lava/whatever. The best alternative / substitute for akadama Best soil for your indoor and outdoor bonsais/ succulents and cactus. 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. It provides a full range of bonsai trees, pots and tools. it broke down after 2 years or something, and I didn't find any better than our volcanic soil but very expensive, then I stopped. 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. Bonsai is a hobby that anyone can enjoy. If you decide to use organic and potting soil, you are not with me. Frankly, in the USA Akadama is becoming so expensive that a cheaper, viable alternative must be found. This I mix with pebbles of Leca or lava e.g. The use of pumice for bottom layer drainage (5/16 “) is recommended.For conifers from the desert and high mountains use medium size mix (3/8” – 5/16”). Old and larger conifers, once every 2-5 years. 4. - Colin Lewis, Akadama breaks down over 1 to 2 years, depending on the quality of the akadama, freeze/thaw cycle in your climate and frequency of watering. We follow the repotting system recommended by all Japanese Bonsai Masters and Growers: Imported from Japan. This means that in 100 percent Akadama roots have 100 percent of the pot volume available for growth. In summer we have cold fog coming in from the ocean. Akadama is Neutral and Kanuma slightly Acidic. The experts answer a few questions that Bonsai Empire asked them about Akadama, and its use as Bonsai soil. Akadama; Kanuma; Local Stockists; You are here. 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.) Now, as for what size to use it all depends on the age and size of the tree in question. Bottom line, make your own experiences and do not use money at a advertised "quality" akadama because it is Japanese, or because your Bonsai dealer tells you to use a Japanese soil, because Bonsai is Japanese. - Boonyarat Manakitivipart (Bonsai Boon), This depends on what is currently available. 3. Climate does not affect my choice of soils since I can control watering during hot dry weather and it never rains so much for so long that excess water becomes a problem. I am now stocking both Akadama and Kanuma for sale in Sydney, I can ship individual to most locations up and down the east cost reasonably cost effectively. Rainfall levels are fairly high and the freeze-thaw cycle is regular, particularly from January through until April. NOTES: Bonsai classes are also available. It's not clay, so the particles do not adhere to each other. Home. - Robert Steven, No there is no possible alternatives to Akadama. With the recent price increases, troubles in supply and proposed alternatives (including cat litter) people seem to be in doubt whether or not to use Akadama at all. Used principally for acid-loving bonsai - Azaleas/Rhododendrons, Camellias, etc, Satsuki in particular. Ficus: 100% Akadama. Surface texture, water retention and drainage are all near optimum, although roots still can't penetrate the grains. Highest temperatures varies from 60-90°F (15-32°C). 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). I have noticed that turface gives good results for a year, possibly two years when used for newly collected plants, but during year three there is a deterioration in vigor at the time when one would normally expect an improvement. We have an average _total_ snowfall of 2.5 meters. (Ordinary peat repels water if it dries out in the mix.) Your trees are growing at your destination, and must be treated that way. Red Pine: (1) Akadama 6 parts, CRS 2 parts, Japanese Black Soil or Coco Peat 2 parts. I used to export a lots to many countries, especially Thailand, Malaysia, Taiwan and China, but we are no more allowed to export. But for the Kanuma (for Azaleas) I use more Kanuma and minus the volcanic cinder. One misunderstanding that many enthusiasts seem to have is that although Akadama has been used for many years in Japan; this is not because it is the 'best' soil for Bonsai. Actually I don't think we should even call ' At Bonsai Empire we receive questions about Akadama, and its use for Bonsai soil, quite a lot. Rainy periods often are in autumn, and summer showers shows too. They are granular in character and aid root/nebari development. 5mm kanuma soil. Both (hard) Akadama and Kanuma come in 4 grades: Medium sized conifers are repotted once a year or every other year. Red Pine: (1) Akadama 6 parts, CRS 2 parts, Japanese Black Soil or Coco Peat 2 parts. Very strong healthy growth and good flower production have been recorded to date. I have been using Diatomaceous Earth or 'Diatomite' (Catlitter) on my trees for around a decade now. Amazon.com : Akadama Premium Bonsai Soil from BonsaiOutlet : … Milder winters have often pretty much rain, and cold winters are very dry. Kanuma. It is on the cool side in summer here in San Francisco Bay Area. 1 liter bag. Now I do not do that. Putting Soil in the Pot. Or: (2) Akadama 8 parts, CRS 2 parts. Akadama Website to find out the full details on the product, Current pricing and availability http://akadama.com.au/?q=node/1, Website for details of Kanuma is here http://akadama.com.au/?q=node/2, Please call or email me for availability but I usually can supply most orders from stock on hand. If you find a nursery selling Kanuma, it is likely that it came from the same supplier 3WM, ask them if they can get in some Akadama in the next order. - Harry Harrington, I use sphagnum peat for trees loving an acid soil (like Azalea, which loves this soil), and alkaline basic nursery soils for other trees. Cat litter is a similar product to turface, but may contain contaminants, so I avoid it. A lot of our experienced customers use Akadama soil for their conifers and deciduous trees, but it's also recommend for novice gardeners. Akadama and Kanuma. We recommend you experiment with different mixes to ensure the best growing medium for your growing conditions/environment. Unfortunately price and unreliability of supply in the USA means that this is not always possible. The cheaper grades break down more quickly than the better grades, and the surface breaks down quicker than lower in the pot, but it still drains well and performs as it should. Akadama does break down. 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. As Imported from Japan growing in broken-down Akadama wo n't automatically die ; it would be wrong of me state. 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