Dynamic accumulator
plant that mines nutrients from the soil through its roots

Dynamic accumulator is a term used in the permaculture and organic farming literature to indicate plants that gather certain minerals or nutrients from the soil and store them in a more bioavailable form and in high concentration in their tissues, then used as fertilizer or just to improve the mulch.
While this idea is quite common and often taprooted plants are used for this reason in companion planting, there is no scientific data supporting it, and the definition itself varies quite depending on the author. The closest thing with a proven scientific base are hyperaccumulators.
The first to use the term dynamic accumulator in the above definition was probably Robert Kourik in his book Designing and Maintaining Your Edible Landscape—Naturally (1986). Kourik later said that he wished he hadn't published that list of dynamic accumulators because it was anecdotal and unscientific. Later, many permaculturists have used dynamic accumulators in their design systems and methods, such as Eric Toensmeier, Dave Jake and Toby Hemenway.
See also
Hyperaccumulator
List of hyperaccumulators
Permaculture
References
External links
The Facts about Dynamic Accumulators
Does Comfrey Really Improve Soil?
What is a dynamic accumulator
Dr. Duke's Phytochemical and Ethnobotanical Databases
Are dynamic accumulators a thing?
This brief starts where responsible research should: with the source description of “Dynamic accumulator” as plant that mines nutrients from the soil through its roots. Everything that follows is an evidence route, not borrowed authority.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Apr 17, 2025. The linked authority identifier is Q5318938. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1986.
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This entry incorporates text from “Dynamic accumulator” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.