My Aunt asked me recently about a good weed free mulch for
topping her new sheet mulch bed -she doesn’t have a lot of on-site materials so
what could she use? As a parent always trying to engage my kids in permaculture
I posed this question to my 2 boys (ages 11 and 8 in 2012).
Rather than answer me directly they were immediately inspired to create a sheet mulch
example out of Lego. I thought it was a
great visual demonstration of all the layers and I decided not to press for an answer. My question was far less interesting than
building this model and they got a load of information from doing it. Though, when finished, my eldest did tell me to make sure any mulch used was never
sprayed with chemicals!
Sheet mulch layers pictured above: