Myth Investigation
5 guides tagged Myth Investigation, from first steps to advanced care.
- BeginnerIndoor Plants
Does Cinnamon Actually Help Houseplants? The Lab Result and the Garden Claim Are Not the Same Study
Cinnamon's active compound really does kill fungi and bacteria in a petri dish. What almost nobody citing that study checks is whether it was ever tested on a dusted plant wound instead of a lab culture. It was not, and that gap, not a caveat at the end, is the actual answer to whether cinnamon does anything for your plant.
5 min readRead guide - 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 Epsom Salt Actually Help Houseplants? Confirm the Deficiency Before You Dose
Epsom salt is a documented remedy for confirmed magnesium deficiency: interveinal chlorosis on older leaves, veins staying green. It does nothing for the two far more common causes of houseplant yellowing, overwatering and plain leaf age. Here is how to tell which one you actually have before you dose.
5 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