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Golden pothos cannot grow fully submerged underwater as a long-term aquatic plant.
While it can survive short periods underwater, its natural growth is as a terrestrial vine.
Many plant lovers wonder if golden pothos can grow underwater because they see pothos thriving in vases and aquariums.
The truth is that pothos grown in water are not truly underwater since their leaves remain above the surface.
If you submerge the entire plant, including all leaves, the roots may rot and the leaves will eventually die.
So when asking “can golden pothos grow underwater?” the answer is no, but with some important caveats.
In this post, we’ll explore why golden pothos cannot grow fully underwater, how it can live with roots in water, and what happens if you try deep submersion.
Let’s dive in.
Why Golden Pothos Cannot Grow Fully Underwater
Golden pothos is adapted to life on land, not as an aquatic plant.
Here are the main reasons pothos cannot grow fully underwater:
1. Pothos Need Air Exchange Through Leaves
The leaves of golden pothos have stomata that absorb carbon dioxide and release oxygen.
Underwater, these stomata cannot function properly.
Without gas exchange, the plant cannot photosynthesize efficiently.
When you submerge pothos leaves, they begin to break down within days.
This is why golden pothos cannot grow underwater for extended periods.
2. Roots Rot in Low-Oxygen Conditions
Pothos roots are designed to grow in soil or airy water.
Fully underwater, oxygen levels drop quickly.
Root rot sets in because bacteria thrive in stagnant water.
Even if you change the water daily, the roots of a fully submerged pothos will struggle.
So golden pothos cannot grow underwater if the entire root system is submerged without access to air.
3. No Adaptation to Aquatic Environments
True aquatic plants have special tissues that transport oxygen to submerged parts.
Golden pothos lacks these adaptations.
Its stems and leaves are not built to resist the constant pressure and reduced light underwater.
Therefore, can golden pothos grow underwater as a true aquatic? No, it cannot.
It simply lacks the biological machinery needed for long-term submersion.
How Pothos CAN Live With Roots in Water (But Leaves Above)
Many people keep pothos in water with only the roots submerged.
This is not the same as growing fully underwater.
Here’s how you can successfully grow golden pothos in water:
1. Place Only the Roots in Water
Take a cutting and let the roots dangle into a jar of water.
The stem and leaves must stay above the waterline.
This setup allows the roots to absorb moisture while leaves breathe air.
So while golden pothos cannot grow underwater with submerged leaves, it thrives with wet roots.
2. Change Water Weekly to Prevent Rot
Stagnant water leads to bacteria and algae.
Replace the water every 7 days with fresh, room-temperature water.
This keeps the roots healthy and prevents the “can golden pothos grow underwater” rot issue.
You can even add a few drops of liquid fertilizer every month for extra nutrients.
3. Use a Transparent Container for Light
Pothos roots also perform some photosynthesis.
A clear glass vase lets light reach the roots, supporting growth.
But remember: the leaves still need direct light for energy.
So in this method, golden pothos can grow in water, just not fully underwater.
What Happens If You Submerge Golden Pothos Completely?
If you try to force a golden pothos to grow fully underwater, expect trouble.
Here’s a timeline of what typically occurs:
1. Leaves Yellow and Decay Within Days
Within 24–48 hours, submerged leaves start turning yellow.
The soft tissues begin to break down because they can’t “breathe.”
After a week, the leaves become mushy and slimy.
This clearly shows that golden pothos cannot grow underwater with its foliage immersed.
2. Roots Suffocate and Rot
Roots need oxygen to survive.
Underwater, oxygen is scarce, especially if the water isn’t aerated.
Brown, mushy roots develop within two weeks.
Once root rot sets in, the entire plant declines rapidly.
So for the question “can golden pothos grow underwater?” the answer remains no.
3. No New Growth Occurs
A fully submerged pothos stops producing new leaves.
The energy reserves are used up trying to survive.
Eventually the plant dies.
Even in a well-lit aquarium with a bubbler, pothos leaves cannot withstand constant submersion.
Therefore, golden pothos cannot grow underwater in any sustainable way.
So, Can Golden Pothos Grow Underwater?
Golden pothos cannot grow fully underwater as a long-term plant.
While it can live with roots in water, the leaves must stay above the surface.
If you submerge the entire plant, it will rot and die within weeks.
So when people ask “can golden pothos grow underwater?” the short answer is no.
But you can still enjoy pothos in water if you keep the foliage dry.
Hope this post clears up the difference between aquatic pothos and water-grown pothos.
Happy planting!