Kiryuzuna is a Japanese mineral substrate of volcanic origin, highly valued in bonsai cultivation, especially for conifers like pines, junipers, and other species that require high drainage and a stable soil structure.
Thanks to its hardness and low water retention capacity, it helps prevent excess moisture around the roots, favoring root aeration and reducing the risk of substrate compaction. The 3 to 6 mm grain size is one of the most used for most bonsai, offering a proper balance between drainage, stability, and root development.
It can be used on its own for species that benefit from highly draining substrates or mixed with other components like Akadama, pumice, or volcanic lava, allowing you to adjust moisture retention and fertility according to each plant’s specific needs.
Traditionally used in Japan in mixes for conifers, Kiryuzuna is an excellent option for improving drainage and increasing the structural durability of bonsai substrates.<\/p>\n
Features<\/strong> Recommended for<\/strong> Use<\/strong> Kiryuzuna is a Japanese mineral substrate of volcanic origin, highly valued in bonsai cultivation, especially for conifers like pines, junipers, and other species that require high drainage and a stable soil structure.Thanks to its hardness and low water retention capacity, it helps prevent excess moisture around the roots, favoring root aeration and reducing the risk […]<\/p>\n","protected":false},"featured_media":95406,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":""},"product_brand":[],"product_cat":[1445,752,1451],"product_tag":[],"class_list":["post-17625","product","type-product","status-publish","has-post-thumbnail","product_cat-accessories-plant-care","product_cat-bonsais-en","product_cat-potting-mixes","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/product\/17625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/media\/95406"}],"wp:attachment":[{"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/media?parent=17625"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/product_brand?post=17625"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/product_cat?post=17625"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/product_tag?post=17625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Japanese Kiryuzuna of volcanic origin
Grain size: 3\u20136 mm
Hard and stable mineral substrate
High drainage capacity
Low water and nutrient retention
Excellent root aeration
Helps reduce substrate compaction
Suitable for pure use or in mixes
Free from pests, fungi and weed seeds
Specially indicated for conifers<\/p>\n
Conifer bonsai
Pines
Junipers
Species requiring high drainage
Mixes with Akadama
Mineral substrates for bonsai<\/p>\n
It can be used pure for species needing highly draining substrates or mixed with Akadama and other mineral components to create balanced substrates, adjusting drainage, moisture retention, and stability according to each bonsai’s needs.<\/p>\n","protected":false},"excerpt":{"rendered":"