Today I present the final verdict on our test of mimosa leaves as a fertilizer.

David's Books: https://amzn.to/3SO7AQi

A couple months ago we set up a test where we added mimosa (Albizia julibrissin) leaves to one bed, with a control bed next to it. Then we planted a variety of brassicas, including mustard, pak choi and cauliflower. Interestingly, the bed with the mimosa leaves has done worse than the one without. My guess is that mimosa is allelopathic to some degree and suppressed the growth.

We got the original idea for using mimosa leaves as fertilizer from a book titled Restoring the Soil by author Roland Bunch. In that book, Bunch describes using fresh Gliricidia sepium leaves as a fertilizer by burying them next to growing crops. We decided to do the same thing with mimosa.