this post was submitted on 07 Jun 2025
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Genuine question: I see lots of stone in the pictures. Isn't that storing a lot of heat which it releases in the otherwise cooler nights? Sure, the lower night temp. will be stored too and released in the morning, but in my experience it's mostly the heat
It is functioning as mulch. Lets water in but slows evaporation. Allows air transfer to soil but blocks direct sunlight (to keep the actual soil cooler and help prevent weed establishment). Also usually light color stone is used. That will reflect some heat away during the day.
Thnx! (Sorry, could not find "accept this answer" checkbox ;) )