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Does Your Moss Wall Need An Irrigation or Watering System?

moss wall close up shot with ladies hand feeling moss
If you want to use living moss for your moss wall, then you may need a watering system or stick to a consistent misting schedule.

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Most moss walls do not need an irrigation or watering system. If you plan on using preserved moss in your moss wall, then you won’t need to water it at all. But if you want to use living moss, then you may need a watering system or stick to a consistent misting schedule. 

What situations would require a watering system for a moss wall?

In some circumstances, a watering or irrigation system might be necessary for your living moss wall. We have listed a few situations below to help you prepare. Always consider your options before deciding if you need a watering system, because they can get quite expensive!

Lady working on multiple moss walls

1. Outdoor Installation:

If your moss wall is installed in an outdoor environment, or exposed to direct sunlight, it may require a watering system, especially in regions with dry climates. An irrigation system with controlled watering schedules may be necessary to maintain the moss’s health.

2. High-Traffic Areas:

High traffic areas like busy office lobbies or rooms with HVAC units installed may have lower levels of natural moisture in the air. Moss walls installed in high-traffic indoor areas with lower humidity levels may benefit from a misting or watering system.

3. Large Installations:

If you plan on having a large moss wall installation, it might be challenging to evenly distribute moisture manually. Water may naturally drain from the highest point of the installation and pool at the lowest point. This could even cause accidental over watering of the lower moss. A controlled watering system may help ensure that all parts of the wall receive adequate hydration.

4. Specific Moss Species:

Some moss species may be more water-dependent than others. If you choose a particular species of moss that requires more moisture for your wall, you may need a watering system to help the moss survive. For more information on moss species, see our article: How to select the right species for your moss wall.

5. Seasonal Variations:

Depending on your towns seasonal changes in humidity and temperature, you may require supplemental watering. You may find your moss gets more thirsty, particularly during drier periods. You can treat this with more frequent misting or by installing a watering system that has a flow variation control.


How to determine if your moss wall needs watering?

Determining when to water a moss wall involves careful observation of the moss’s appearance and local environmental conditions. Below we have some tips and tricks to help. For more information, read our article: How to care for and maintain your living moss wall.

1. Visual Inspection:

Try to regularly examine the moss’s surface. Look for signs of dryness, such as the moss turning pale or brown, losing its vibrancy, or appearing brittle. You may find yourself doing this naturally over time as moss walls can be too beautiful to resist being stared at.

2. Texture Assessment:

Gently touch the moss. If it feels dry or crispy to the touch, it likely needs water. Healthy moss should feel moist and soft.

3. Environmental Conditions:

Consider the environmental factor of where your moss wall is installed. Check the humidity levels and temperature. If the environment is particularly dry, the moss may require more frequent watering.

4. Watering Schedule:

If you have a regular watering schedule, monitor the moss wall’s response to it. If the moss consistently appears healthy and vibrant, your current schedule may be adequate. If not, adjust the frequency or amount of watering.

5. Consistency:

Maintaining a consistent watering routine is often the most beneficial tactic for keeping your moss wall healthy. Moss walls tend to prefer a steady moisture level rather than irregular, heavy watering. If you find your schedule constantly changing or can’t find time to maintain your moss wall, an irrigation system might be the best way to go.

Moss center piece for table hollow wood table filled with moss

How to determine if you are over watering your moss wall?

Be careful not to over water as this may lead to mold growth, leaking of water from the wall or even discoloration. Below are some of the signs and symptoms of over watering:

Moss wall lady multiple moss walls maintenance

1. Soggy Appearance:

If the moss appears consistently wet or waterlogged, it’s a clear sign of over watering. Moss should not be dripping with moisture.

2. Dark Patches or Discoloration:

Over watered moss may develop dark, soggy patches or have a slimy appearance and texture. Healthy moss should be evenly green and dry to the touch.

3. Mold or Algae Growth:

Excessive moisture can encourage the growth of mold, mildew, or algae on the moss wall’s surface. These growths are often indicators of overly wet conditions.

4. Foul Odor:

Over watering can lead to stagnant water and a foul, musty odor emanating from the moss wall.

5. Moss Detachment:

If the moss is detaching from the wall or substrate easily, it may be a result of excessive moisture, which can weaken its attachment. Hopefully this doesn’t happen to you!

6. Algae or Weeds in the Soil:

If there is a soil layer beneath your moss, over watering can promote the growth of unwanted plants like algae or weeds, which can compete with the moss for nutrients.

7. Excessive Moss Growth:

Over watering can sometimes lead to an increased rate of growth for your moss. This may not sound so bad, but it may result in you having to maintain and trim it more often or risk the wall losing its particular aesthetic.


Always remember, if you’re unsure about when to water your moss wall or need guidance, you can always consult a professional or the installer who created the wall for specific recommendations.

Or better yet, subscribe to our newsletter, check out other Homely Retreat articles and the “moss wall” tag for more tips tricks and advice.

The key take away is that moss walls are generally low-maintenance once established, and it’s essential to find the right balance between providing adequate moisture and avoiding excessive watering to keep your moss wall healthy and vibrant.

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