Fine volcanic gravel: The best substrate for bonsais and cactus. Available in 2 Granulometry: 1-2 mm and 2-4 mm. With a stabilized pH between 5.5 and 6It is an excellent support for cultivation.
Akadama substitute and nutrient improver: We have always heard that Akadama is the best substrate for the bonsais. This Japanese volcanic substrate was used from the beginning in the culture of Bonsáis, but its mineral content is much lower than the volcanic lava gravel. Both are from volcanic origin, light and porous, and maintain moisture, perfect for bonsais and cactus.
However, the Volcanic gravel has the advantage of providing more minerals: a 27% more silicon, 12% calcium, 10% more magnesium, and 3% more iron. The volcanic gravel is superior to the Akadama.
It decomposes slowly with irrigation water, releasing essential and micronutrient minerals as calcium, magnesium, iron and siliceous. Thus, your bonsais will be better fed and more complete than if you use Akadama.
In addition, its Red/Brown/Garnet color It enhances the beauty of the bonsais, adding a unique aesthetic touch.
