Why Does My Monstera Not Have Fenestrations

Your monstera doesn’t have fenestrations because it’s likely not mature enough, isn’t getting enough light, or hasn’t had the right climbing support to trigger those iconic splits and holes.
 
Fenestrations are those gorgeous leaf slits and inner windows that make monstera leaves look so dramatic.
 
If you’ve been googling “why does my monstera not have fenestrations,” you’re not alone — it’s one of the most common questions from plant parents.
 
The good news is that your monstera isn’t broken, and there are several actionable ways to encourage those fenestrations to finally appear.
 
In this post, we’ll break down the real reasons why your monstera lacks fenestrations, how to fix each one, and what you can expect as your plant matures.
 
Let’s dig into the leafy mystery.
 

Why Your Monstera Doesn’t Have Fenestrations Yet

The short answer to why your monstera doesn’t have fenestrations is usually a combination of age, light, and support.
 
Monstera deliciosa plants naturally start producing fenestrations once they reach a certain stage of maturity, which often takes a few years.
 
A young monstera that’s still in its juvenile phase will typically push out solid, heart-shaped leaves without any splits.
 
Even if you bought a larger plant from a nursery, it might have been grown in low-light conditions that stalled its fenestration development.
 
So, if you’re staring at solid green leaves and wondering “why does my monstera not have fenestrations,” you’re likely dealing with one or more of these core factors.
 

1. Your Monstera Is Still Too Young

The single most common reason why your monstera doesn’t have fenestrations is simple: it’s just a baby.
 
Monstera leaves develop fenestrations as the plant matures, usually starting after the plant has produced around five to ten leaves.
 
In the wild, these plants climb up trees and only reach maturity after they’ve ascended significantly.
 
A young monstera grown from a cutting or a small pot will stay in its juvenile form for a while.
 
You can’t force a one-year-old monstera to produce fenestrations overnight — it happens on its own timeline.
 
The best move here is patience, along with giving your plant the right conditions to speed up that aging process.
 

2. Not Enough Bright, Indirect Light

Light is arguably the biggest environmental trigger for monstera fenestrations.
 
If your monstera doesn’t have fenestrations, chances are it’s sitting in a dim corner or a spot that only gets weak, filtered light.
 
Monsteras need bright, indirect sunlight for several hours a day to generate the energy required for those complex leaf splits.
 
Without adequate light, the plant focuses on basic survival, producing smaller, simpler leaves without fenestrations.
 
Move your monstera closer to an east-facing window or a few feet away from a south-facing one.
 
You’ll often see new leaves emerge with fenestrations within a few months once light levels improve.
 

3. No Climbing Support Means No Fenestrations

Monsteras are epiphytes, which means they naturally climb up trees in the jungle.
 
When they climb, they produce larger leaves and more fenestrations as a survival adaptation.
 
A monstera without a moss pole, trellis, or stake may stay in its juvenile state because it doesn’t sense the vertical growth trigger.
 
If you’re asking “why does my monstera not have fenestrations,” check if it’s sprawling horizontally or leaning without support.
 
Add a moss pole and gently tie the aerial roots to it, encouraging upward growth.
 
That vertical signal often kicks the plant into producing the split leaves you’re craving.
 

4. Pot-Bound Roots Can Delay Fenestrations

A root-bound monstera might actually produce fenestrations more readily in some cases, but a severely cramped one can stall growth.
 
If your monstera is stuck in a pot that’s too small, it may not have enough resources to develop fenestrations.
 
On the flip side, a pot that’s way too big can also slow down leaf production because the plant focuses on root growth first.
 
Check if roots are circling the bottom or poking out of drainage holes.
 
If so, transplant it into a pot that’s just two inches larger in diameter — not bigger.
 
A well-rooted but not choking plant will put its energy into lush, fenestrated leaves.
 

5. Inconsistent Watering or Feeding

Your monstera might not have fenestrations because it’s stressed from irregular watering or a lack of nutrients.
 
Monsteras prefer consistently moist (but not soggy) soil, and letting them dry out completely between waterings can shock them.
 
Underwatering causes leaf cells to shrink, and the plant will often produce smaller, solid leaves to conserve energy.
 
Fertilizer also plays a role — a monstera low on potassium or magnesium may lack the oomph to create fenestrations.
 
Feed your monstera with a balanced liquid fertilizer (like 20-20-20) once a month during spring and summer.
 
This gives it the exact nutrients needed for those dramatic leaf splits.
 

How Long Until My Monstera Gets Fenestrations?

If you’ve fixed the light, support, and watering, you might still wonder when you’ll finally see fenestrations.
 
From a healthy cutting, expect your monstera to start showing small fenestrations on leaves that appear after about one to two years.
 
Younger plants often produce leaves with just tiny notches near the edges, which is a sign fenestrations are on the way.
 
Full inner holes and deep splits typically appear on plants that are three years old or older, especially if they’re climbing.
 
So if you’ve only had your monstera for a few months, that’s likely why the fenestrations haven’t shown up yet.
 
Keep providing bright light, a moss pole, and steady care, and those splits will come with time.
 

Signs That Fenestrations Are Coming Soon

Look for subtle clues that your monstera will soon produce fenestrations.
 
New leaves that are larger than previous ones are a great sign, as bigger leaves often precede splits.
 
Also, check the newest leaf’s stem — if it’s longer and thicker, the plant is investing in mature growth.
 
Some monsteras will even push out slightly lobed or wavy edges before full fenestrations appear.
 
Celebrate these little milestones because they mean your plant is finally headed toward fenestration glory.
 

So, Why Does My Monstera Not Have Fenestrations?

Your monstera doesn’t have fenestrations because it’s still immature, underlit, unsupported, or a mix of all three.
 
It’s not a disease or a sign of poor parenting, just a natural stage of growth that you can influence.
 
Move your monstera to a brighter spot, give it a moss pole to climb, and stay consistent with watering and feeding.
 
With those adjustments, your monstera will likely reward you with those legendary split leaves.
 
And if it still takes a few months, know that every new solid leaf is a stepping stone toward fenestrations.
 
Patience and good care are the ultimate secrets, so keep at it — your fenestrated future is coming.
 
Now go check your monstera’s light and support, and give it the boost it needs.