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Myth Investigation

3 guides tagged Myth Investigation, from first steps to advanced care.

  • IntermediateIndoor Plants

    Does LECA Semi-Hydroponics Actually Prevent Root Rot? What the Evidence Shows

    LECA (expanded clay pebbles) is real, inert, and porous, and semi-hydroponics is a genuine technique with a real mechanism behind it. What I could not find, after reading the actual sources, is a controlled study showing it prevents root rot better than soil in houseplants. Here is the honest split between the material science and the unproven claim.

    6 min readRead guide
  • BeginnerIndoor Plants

    Does the Ice Cube Watering Method Actually Hurt Orchids? What the Evidence Shows

    The one-ice-cube-a-week method sold on big-box Phalaenopsis tags skips a documented fact about the plant: root rot risk rises below 18C and leaf drop follows sustained exposure below about 15.5C. An ice cube is 0C. Here is the cold-tolerance evidence I could verify, and the meltwater-dilution defense I could not.

    5 min readRead guide
  • BeginnerIndoor Plants

    Do Coffee Grounds Actually Help Houseplants? What the Evidence Shows

    Used coffee grounds really do contain nitrogen, potassium, magnesium, and phosphorus in measurable, documented amounts. What the same source does not support is the popular reason people give for using them: that they acidify soil for acid-loving houseplants. Here is the honest split between the real nutrient content and the unproven acidity claim.

    5 min readRead guide