Perlite is a naturally occurring, volcanic rock. When furnaced at high temperatures, Perlite \u201cpops\u201d and expands 7 to 15 times its original volume. The resulting lightweight particles are made up of microscopic spheres with a porous, broken surface that promotes plant growth. This allows aeration and drainage of the root system and provides holding capacity for water and nutrients.<\/p>\n
Our agricultural and horticultural grade products are listed with either OMRI or the California Department of Agriculture for use in organic crop production. Organic certification ensures that our products are free of contamination from heavy metals and pathogens, and produced to the highest standard of quality.<\/p>\n
We carry 3 different grades, availability varies.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":" Perlite is a naturally occurring, volcanic rock. When furnaced at high temperatures, Perlite \u201cpops\u201d and expands 7 to 15 times its original volume. The resulting lightweight particles are made up of microscopic spheres with a porous, broken surface that promotes plant growth. This allows aeration and drainage of the root system and provides holding capacity […]<\/p>\n","protected":false},"featured_media":10142,"comment_status":"open","ping_status":"closed","template":"","meta":{"jetpack_post_was_ever_published":false},"product_brand":[],"product_cat":[17,32],"product_tag":[],"class_list":{"0":"post-4886","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-soil-amendments","7":"product_cat-soil-mixing","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-variable"},"jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":852,"url":"https:\/\/www.concentratesnw.com\/?product=ss-growers-organic","url_meta":{"origin":4886,"position":0},"title":"Sunshine Grower’s (#1) Professional Potting Mix","author":"Holly","date":"October 26, 2017","format":false,"excerpt":"Call 503-234-7501 for ordering information, only available as freight or in-store pick-up. \u00a0","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.concentratesnw.com\/wp-content\/uploads\/2017\/10\/sun-gro.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.concentratesnw.com\/wp-content\/uploads\/2017\/10\/sun-gro.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.concentratesnw.com\/wp-content\/uploads\/2017\/10\/sun-gro.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":855,"url":"https:\/\/www.concentratesnw.com\/?product=1-5-cf-black-gold-seedling","url_meta":{"origin":4886,"position":1},"title":"Black Gold Seedling Mix (Organic)","author":"Holly","date":"October 26, 2017","format":false,"excerpt":"\u00a0","rel":"","context":"With 5 comments","block_context":{"text":"With 5 comments","link":"https:\/\/www.concentratesnw.com\/?product=1-5-cf-black-gold-seedling#comments"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.concentratesnw.com\/wp-content\/uploads\/2017\/11\/IMG_1117-e1510344756462.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.concentratesnw.com\/wp-content\/uploads\/2017\/11\/IMG_1117-e1510344756462.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.concentratesnw.com\/wp-content\/uploads\/2017\/11\/IMG_1117-e1510344756462.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.concentratesnw.com\/wp-content\/uploads\/2017\/11\/IMG_1117-e1510344756462.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.concentratesnw.com\/wp-content\/uploads\/2017\/11\/IMG_1117-e1510344756462.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.concentratesnw.com\/wp-content\/uploads\/2017\/11\/IMG_1117-e1510344756462.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":845,"url":"https:\/\/www.concentratesnw.com\/?product=2-cf-bg-organic-potting-soil","url_meta":{"origin":4886,"position":2},"title":"Black Gold Natural & Organic Potting Soil (Organic)","author":"Holly","date":"October 26, 2017","format":false,"excerpt":"Made from the finest ingredients, our Natural & Organic Potting Mix is an all-purpose mix recommended for containers and raised beds and ensures good aeration. 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