• @pftbest
        link
        171 year ago

        It can also be a hot water pipe, which gives out enough heat to protect the plant roots from freezing during winter.

        • @Chais
          link
          31 year ago

          Or maybe there used to be a path there, while the surrounding area was covered with gravel or something else preventing growth.

        • @[email protected]
          link
          fedilink
          111 months ago

          I impassive it doesn’t need to be hot. Regular water is probably enough to keep it above freezing

        • zer0
          link
          fedilink
          111 months ago

          That is the most common cause for such phenomena