Thermal masses, like rocks, simply slow down any temperature change ...
Note that this is further complicated by wind, vegetation and the rate of heating/cooling of the surrounding soil.
The rocks would make their area heat up slower over the day and cool down slower at night, bringing the maximum and minimum temperatures closer together.
Troy wrote:Additionally, rocks and gravel are the primary source of minerals in the soil and break down as your plants need them.
I am sure this is more than Ludi wanted, but I am curious to hear other people's thoughts about what I have been wondering about for a while now.
Ludi Ludi wrote:
I have literally tons of rocks in my garden. I'm digging them out to replace with hugelkultur beds. I'm piling the excavated rocks on the downhill side of the garden. What are some ideas of how I can use these rocks in the most beneficial way for my garden in a usually dry, sometimes flooding, hot in the summer, usually mild winter, climate? Can rocks mitigate temperature extremes - that is, can they keep it from getting as hot as well as cold?
Interested in your ideas for using many many rocks in and around the garden!