Kiryu Bonsai Soil is a hard porous grit designed to enhance the drainage characteristics of your Bonsai soil mix. Its key properties are being pH neutral combined with an essential ability to drain excess water from the soil and retain an open soil structure.
Kiryu Bonsai Soil is particularly useful when repotting trees that remain in their pots for long periods. This Kiryu Bonsai Soil can be used in a mixture of other soil ingredients depending on growing conditions and tree species.
Imported from Japan, it has a grain size of 4mm to 8mm and is supplied in 1 litre bags.For information on bonsai soil substrates and indicative mixes for your trees, take a look at our bonsai soil substrates article.