Why does moss sometimes become hard?

Why does moss sometimes become hard? – everything about humidity and moss quality

Our moss artworks are carefully crafted using high-quality, naturally preserved types of moss. Thanks to a preservation method based on natural salts, the moss remains soft, flexible, and vibrant in colour — without the need for water or maintenance. Still, we sometimes receive the question: why does my moss feel hard? In this blog, we explain why this can happen and what you can do about it.

Moss and humidity: how does it work?

Moss responds to the humidity in the room. At a normal humidity level between 40% and 60%, the moss stays soft and resilient. That is the ideal condition in which the moss maintains its natural properties.

What happens in dry air?

If the humidity drops below 30% — which often happens in winter when the heating is on and it’s freezing outside — the moss can:

• Feel harder and drier
• Become more sensitive to damage when touched

This effect is temporary and disappears as soon as the humidity in the room rises again.

White film on the moss: what is it?

In extremely dry conditions, the natural salts in the moss can start to bloom. This appears as a white film or a dull look on the moss. Don’t worry: these are simply salt crystals that temporarily become visible and can easily be treated.

Solution: a light mist works wonders

Use a plant sprayer to gently mist the moss with water. This will:

• Dissolve the salt crystals
• Restore the moss’s natural colour
• Make the moss soft and fresh again

Note: There is no need to wet the moss — a light mist is enough.

Conclusion

The temporary hardening of moss is a natural reaction to low humidity, especially during winter. Fortunately, it can easily be reversed with a light misting of water. This way, you can enjoy a green, maintenance-free eye-catcher all year round!