Humidity guide
How much humidity does hairy st john's-wort need?
What actually works
If your home does get very dry in winter (heating on constantly, static in the air), simply moving hairy st john's-wort away from the radiator does more than any humidity gadget.
Why misting is not the answer
Buying humidity equipment hairy st john's-wort does not need. Misting in particular raises humidity for only a few minutes, and repeatedly wetting the leaves invites fungal spotting — the effort is worse than doing nothing.
More hairy st john's-wort care
Hairy St John's-wort humidity — FAQ
How much humidity does hairy st john's-wort need?
Hairy St John's-wort is comfortable at Moderate (40–70 %) — which is ordinary indoor humidity in most homes. This is the good news people rarely hear: hairy st john's-wort does not need a humidifier, a pebble tray or daily misting. Typical living rooms sit between 30% and 50%, so unless you are running heating hard in a very dry climate, the air you already have is fine.
Do I need a humidifier for hairy st john's-wort?
Nothing to do — normal room air suits it. If your home does get very dry in winter (heating on constantly, static in the air), simply moving hairy st john's-wort away from the radiator does more than any humidity gadget.
Should I mist hairy st john's-wort?
Buying humidity equipment hairy st john's-wort does not need. Misting in particular raises humidity for only a few minutes, and repeatedly wetting the leaves invites fungal spotting — the effort is worse than doing nothing.
What are the signs hairy st john's-wort needs more humidity?
Crisp brown leaf edges and browning tips are the reliable tell. Yellowing whole leaves is usually a watering issue rather than dry air, and slow growth in winter is normally low light — humidity gets blamed for a lot it does not cause.