Monstera Growing Sideways – Restore Vertical Growth And Plant

It is common to feel a bit concerned when you notice your Monstera growing sideways instead of reaching toward the ceiling. You likely bought this plant for its iconic, fenestrated leaves and its ability to act as a living focal point in your home.

I promise that this horizontal habit is not a sign of a dying plant, but rather a sign of a plant following its natural instincts. You can easily redirect this growth to create a stunning, vertical display that saves floor space and improves plant health.

In this guide, we will explore why your Monstera leans, how to install professional-grade supports, and the specific pruning techniques I use to keep my own specimens balanced and thriving. Let’s get your plant back on the right track.

The Natural Instincts of the Monstera Deliciosa

To understand why you see your monstera growing sideways, we must look at its origins in the rainforests of Central and South America. These plants are hemiepiphytes, meaning they spend part of their life cycle growing on other plants.

In the wild, a Monstera seed germinates on the forest floor and immediately begins “skototropism,” which is growth toward darkness. This seems counterintuitive, but darkness usually signifies the shadow of a large tree trunk that the plant can climb.

Once it finds a host, it uses its aerial roots to grip the bark and climb toward the canopy. If your plant has no support in your living room, it will simply crawl across the floor or the top of your bookshelf looking for a vertical surface.

The Role of Aerial Roots

You may notice thick, brown, woody “vines” growing out of the nodes of your Monstera. These are not dead stems; they are specialized roots designed to anchor the plant and absorb moisture from the air.

When the plant grows horizontally, these roots are searching for soil or a tree. If they find nothing, the weight of the heavy leaves eventually pulls the entire caudex (the main stem) sideways.

Phototropism: Why Light Causes the Lean

While the plant’s nature is to climb, its immediate direction is often dictated by phototropism. This is the process where a plant grows toward its primary light source to maximize photosynthesis.

If you place your Monstera in a corner far from a window, it will stretch its petioles (leaf stalks) toward the glass. Over time, the entire center of gravity shifts, resulting in a monstera growing sideways as it hunts for those elusive photons.

To prevent this, you should provide bright, indirect light. A spot near a north or east-facing window is often ideal, as it provides consistent light without the risk of scorching the foliage with direct afternoon sun.

Rotating for Balance

I recommend rotating your pot by 90 degrees every time you water. This simple habit ensures that all sides of the plant receive equal light exposure, preventing a permanent lean in one direction.

If your plant has already developed a severe lean, you may need to move it to a brighter location temporarily. This encourages the new growth to head in a different direction while you work on structural supports.

Correcting a Monstera Growing Sideways with Supports

The most effective way to manage a monstera growing sideways is to provide a physical structure that mimics a tree trunk. This allows the plant to grow vertically, which often results in larger leaves and more dramatic fenestrations.

Choose a support that fits your aesthetic and the size of your plant. Popular options include moss poles, coco coir poles, cedar planks, or even heavy-duty bamboo trellises.

How to Install a Moss Pole

Installing a support is best done during repotting to avoid damaging the existing root system. If you cannot repot, be very careful when inserting the pole into the current container.

• Step 1: Select a pole that is at least 12 inches taller than your plant to allow for future growth.
• Step 2: Insert the pole deep into the pot, ideally touching the bottom for maximum stability.
• Step 3: Identify the “back” of the Monstera. This is the side where the aerial roots emerge.
• Step 4: Press the back of the stem against the pole and secure it with soft plant ties or Velcro strips.
• Step 5: Avoid tying the petioles (the leaf stalks). Only tie the main woody stem to allow the leaves to move freely toward the light.

Maintaining Moisture in the Pole

If you use a real sphagnum moss pole, keep it moist. This encourages the aerial roots to grow into the pole rather than just resting against it. A moist pole provides better hydration and a much stronger grip.

I use a spray bottle or a small watering can with a narrow spout to dampen the pole once a week. This mimics the humid bark of a tropical tree and rewards the plant for its vertical effort.

Pruning for Structural Integrity

Sometimes, a monstera growing sideways has become too heavy or “leggy” to be saved by a pole alone. In these cases, strategic pruning is your best tool for restoring a beautiful shape.

Pruning allows you to remove the sections that are growing in the wrong direction. This redirects the plant’s energy to the lower nodes, often resulting in a fuller, bushier appearance near the base of the pot.

Safety First: Handling Monstera Sap

Before you grab your shears, remember that Monstera plants contain calcium oxalate crystals. This sap can cause skin irritation or a mild rash for some gardeners. It is also toxic if ingested by pets.

I always wear a pair of lightweight gardening gloves when pruning. If you get sap on your skin, wash it off immediately with warm, soapy water. Ensure your tools are sterilized with rubbing alcohol to prevent the spread of pathogens.

Where to Make the Cut

To encourage new growth, you must cut just above a node. The node is the thickened bump on the stem where leaves and roots emerge. If you cut the “internode” (the space between bumps), the remaining stump will simply rot away.

1. Locate a node that is facing the direction you want the plant to grow.
2. Use a sharp, bypass pruner to make a clean, horizontal cut about half an inch above that node.
3. The plant will eventually push a new “growth point” from that node, usually heading upward.

Propagating Your Cuttings

One of the best “pro” tips I can give you is to never throw away your healthy prunings. If you have had to cut back a monstera growing sideways, you likely have several high-quality cuttings ready for propagation.

Ensure each cutting has at least one node and one healthy leaf. Place the cutting in a jar of clean, filtered water. Change the water every few days to keep it oxygenated and prevent algae growth.

Within a few weeks, you will see new white roots emerging. Once these roots are 2-3 inches long, you can plant them back into the original pot. This makes the base of your plant look much fuller and hides any bare stems at the bottom.

Soil, Nutrients, and Long-Term Stability

A plant that grows sideways often puts immense physical stress on its root ball. If the soil is too loose or the pot is too light, the entire plant might tip over, pot and all. This can lead to cracked ceramic or damaged foliage.

I recommend using a heavy terracotta pot for large Monsteras. The weight of the clay provides a counter-balance to the heavy foliage. Additionally, terracotta is porous, which helps the soil dry out more evenly and prevents root rot.

The Ideal Soil Mix

Monsteras need an “aroid mix” that provides both stability and drainage. A standard potting soil is often too dense and can suffocate the roots. I use a blend of:

• 2 parts high-quality potting soil.
• 1 part orchid bark (for aeration and texture).
• 1 part perlite or pumice (for drainage).
• A handful of horticultural charcoal (to keep the soil “sweet” and filtered).

Feeding for Strong Stems

Weak, spindly stems are more likely to flop over. To build structural strength, use a balanced fertilizer with an NPK ratio like 20-20-20 or 10-10-10 during the growing season (spring and summer).

Nitrogen (N) promotes leaf and stem growth, while Potassium (K) helps with overall plant cellular strength. I prefer a liquid fertilizer diluted to half-strength every two weeks. This provides a steady supply of nutrients without the risk of salt buildup in the soil.

Common Pitfalls to Avoid

Even experienced gardeners make mistakes when dealing with a monstera growing sideways. Avoid these common errors to keep your plant in peak condition:

Using tight wire: Never use thin wire or fishing line to tie your plant. These materials can cut into the soft tissue of the stem as the plant grows, leading to infections or snapped branches. Always use soft, flexible ties.

Over-watering: A leaning plant is sometimes a sign of root rot. If the roots are mushy, they cannot anchor the plant in the soil. Always check the top two inches of soil; it should be dry before you add more water.

Neglecting the “Back” of the plant: Monsteras have a distinct front and back. The leaves face the front, and the roots grow out the back. If you try to force the “front” of the plant against a pole, it will look awkward and struggle to attach.

Frequently Asked Questions

Can I just let my Monstera grow sideways?

Yes, you can. In a large enough space, a trailing Monstera can look quite beautiful. However, the leaves will likely remain smaller, and the plant will eventually take up a significant amount of floor space. It may also become a tripping hazard.

How do I know if my Monstera needs a bigger pot or just a pole?

Check the drainage holes. If roots are circling the bottom or poking out, it needs a bigger pot. If the roots look fine but the plant is simply leaning, a pole is the better solution. Usually, adding a pole and a slightly larger pot together is the best approach for a growing plant.

My Monstera stem is too thick to bend toward a pole. What should I do?

Do not force a thick, woody stem to bend, as it will snap. Instead, position the pole as close as possible to the current position of the stem. Use ties to gently encourage new growth toward the pole. Over several months, the plant will naturally align itself with the support.

Is it better to use a trellis or a moss pole?

Moss poles are better for Monstera deliciosa because they allow the aerial roots to embed themselves. Trellises are excellent for smaller cultivars like Monstera adansonii (the Swiss cheese vine), which has thinner stems and is easier to weave through a frame.

Final Thoughts on Straightening Your Monstera

Managing a monstera growing sideways is a rewarding part of being a plant parent. It allows you to interact with your plant, learn its growth patterns, and ultimately shape it into a living masterpiece. By providing the right light, a sturdy support, and the occasional prune, you transform a messy vine into a majestic vertical feature.

Remember to be patient. Plants move on their own timeline. Your Monstera didn’t start growing sideways overnight, and it will take a few weeks of “training” to see it comfortably climbing its new pole. Keep your shears sharp, your moss pole damp, and your eyes on those beautiful new leaves reaching for the sun.

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Taylor Galla

Founder and Author at Gardenaider

Taylor Galla is an American website author, product spokesman, mechanical engineer, automotive enthusiast, and automotive modifier.

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