I’ve discussed my dislike of cardboard mulch before: like other sheet mulches it restricts water and gas transfer between the soil and atmosphere. In published comparison studies, other mulch choices generally outperform cardboard in terms of plant growth, weed control, etc. But there’s one area where cardboard is tops compared to every other mulch material … Continue reading Why I don’t like cardboard mulch
In the quarter century that I’ve been researching, publishing, and educating on the topic of landscape mulches, one thing has become clear: cardboard should never be used as a mulch. This viewpoint has been of great interest to gardeners; in fact, my earlier post has been the most frequently viewed post since it was published … Continue reading Cardboard does not belong on your soil. Period.
I just returned from one of my self-imposed retreats where I have no cell phone service nor internet. This means I can focus on writing without interruption. One of my projects this year is to publish a scientific critique of permaculture (stay tuned for that late 2023). Part of my process is to read popular … Continue reading Deep sheet mulching is “bat-sheet crazy”
I’m not a fan of using corrugated cardboard as a mulch, which like other sheet mulches creates problems for the underlying soil. Long-time readers of this blog may remember several previous posts (1, 2, 3 and 4) on this topic and I won’t belabor the points made in those posts. Instead, today I’m doing to … Continue reading The cardboard controversy
Alert reader Matt Wood pointed out a recent article in the NY Times on mulching with newspaper and wondered about my take on the topic. For use on landscapes, I do not like sheet mulches of any stripe. They tend to hinder to air and water movement, most especially in unmanaged landscapes like restoration sites. A classic … Continue reading Sheet mulching – benefit or barrier?
One of the gardening topics I’ve researched extensively is the use of landscape mulches. (You can read a literature review I did a few years ago here.) So I was more than a little frustrated to see one of the worst mulching techniques – sheet mulching – extolled in the book Gaia’s Garden (pp. 85-90). … Continue reading Permaculture – more concerns
Last week there was much ballyhooing over a new article on the benefits of native plants in supporting insect populations. I’ve posted on the fallacy of native plant superiority before, pointing out that landscape biodiversity not plant provenance, is most important for supporting all types of beneficial wildlife. Despite robust, published evidence to the contrary, … Continue reading Recognizing bad science by honing your B(ad) S(science) detector
I am constantly slaying horticultural snake oil dragons. There is so much misinformation on the web and even within University/Extension publications. In this blog I turn my attention to compost–a subject that is almost universally cherished by gardeners, gardening groups and horticulturists. Unfortunately there are a lot of misnomers about compost. Plants are composed of … Continue reading The Yin Yang of Compost
Nothing drives me crazier than simplistic solutions to complex problems. Given our changing climate, there has been an explosion of “drought tolerant” and “firewise” plant lists in the gardening world. Most of these lists are devoid of science and all of them are removed from reality. The fact is that taxonomy plays a minimal role … Continue reading Plant lists that shouldn’t exist
Last month I started a series on raised bed gardens, focusing on materials and designs. Today I’ll mention some of my favorite tools and materials for putting everything together and getting ready to plant. Getting your soil ready for raised bed use Tools and materials: shovel, wheelbarrow, tarp, soil screens If you’ll recall from my … Continue reading Tools, tips, and terrible traditions for raised beds – Part 2