Permaculture designers talk about basing their systems on "patterns found in 'Nature'". If there is no such object as "Nature" (a reified thing over there that is separate from us and therefore observable by us), and if "Nature" doesn't even consistently work as a normative concept (it doesn't), then what they are really talking about are patterns found in the minds of permaculture designers, transmitted to students and enthusiasts (permaculturists: yes, it is an ideology), and projected onto a vast array of discrete beings that don't actually "fit" into anything without a lot of work.
My favorite iteration of the permaculture mode so far is Mark Shepard's Restoration Agriculture. Shepard is a brilliant guy. Probably without fully realizing it, he has incorporated Speculative Realist philosophy into his approach. "Is it agriculture, or is it eco-restoration?" asks the bewildered USDA. "Look," Shepard replies, "the cosmos is not either/or: it's a sloshing back and forth of different things."
Tim Morton says "flickering" instead of "sloshing", but it's the same idea! This acceptance of the liminal, this enlightened violation of the Law of Noncontradiction, this sympathy for the excluded middle, is precisely Dark Ecology and the Object Oriented Ontology that is its deep philosophical informant.
Unfortunately Shepard's teacher was Bill Mollison, and so he also gets mired in the metaphysics of presence in a way that contradicts his own enlightenment when he insists that "You have to know the difference between a concept and an observation!" Oh, really? How do you do that, now? This idea that some "Nature"-people (who only ask for a small couple grand to teach you their secrets) can somehow do what nobody else can––determine where an object's appearance ends and its true being begins––is a leftover from Mollisonian junk-vitalism and 1980s ecomimeis ("I am part of 'Nature'"), the effect of which is mainly to divide needs from resources in a manner fully on board with the agrilogistics that have been destroying living beings on Earth for twelve thousand years. But that's how permaculture designers make their money.