Akadama Ibaraki Hard Quality is a high-quality Japanese volcanic clay, widely recognized as one of the best substrates for bonsai cultivation. Thanks to its porous structure and calibrated particle size of 3 to 6 mm, it provides an excellent balance between drainage, root aeration and water retention, promoting healthy and vigorous root development.
Its high capacity for nutrient retention and availability allows for more efficient fertilization, contributing to balanced growth and greater plant health. The Hard Quality version offers superior resistance to degradation, maintaining its structure for longer and reducing substrate compaction.
It can be used on its own or mixed with other components, such as Kiryuzuna, pumice, volcanic lava or organic matter, allowing you to create substrates adapted to the specific needs of each species.
Traditionally used in Japan for cultivating deciduous and evergreen bonsai, it is also frequently incorporated into conifer mixes, where it helps balance moisture retention and drainage.
Beyond bonsai use, it is also appreciated by collectors of special plants and in aquariums, especially planted tanks.<\/p>\n
Features<\/strong> Recommended for<\/strong> Use<\/strong> Akadama Ibaraki Hard Quality is a high-quality Japanese volcanic clay, widely recognized as one of the best substrates for bonsai cultivation. Thanks to its porous structure and calibrated particle size of 3 to 6 mm, it provides an excellent balance between drainage, root aeration and water retention, promoting healthy and vigorous root development.Its high capacity […]<\/p>\n","protected":false},"featured_media":95382,"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":"none","_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":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":""},"product_brand":[],"product_cat":[1445,752,1451],"product_tag":[],"class_list":["post-17623","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\/17623","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\/95382"}],"wp:attachment":[{"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/media?parent=17623"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/product_brand?post=17623"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/product_cat?post=17623"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hortodocampogrande.pt\/en\/wp-json\/wp\/v2\/product_tag?post=17623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Original Japanese Akadama from the Ibaraki region
Premium “Hard Quality” grade
Grain size: 3\u20136 mm
Excellent drainage and root aeration
Good water and nutrient retention capacity
Structure resistant to degradation and compaction
Suitable for pure use or in mixes
Slightly acidic to neutral pH
Free from pests, fungi and weed seeds<\/p>\n
Deciduous bonsai
Evergreen bonsai
Conifers (in mix with other components)
Specialty plants
Planted aquariums<\/p>\n
Can be used at 100% for many bonsai species or combined with other mineral substrates to adjust drainage, moisture retention and fertility according to each plant’s needs.<\/p>\n","protected":false},"excerpt":{"rendered":"