Monstera Thai Constellation, also known as Variegated Monstera, belongs to the tropical plant empire.
To read more about the Variegated Monstera, you can check out our article about The Elusive Variegated Monstera Deliciosa.
Monstera Thai Constellation is native to southern Mexico and Panama.
As the plant develops, the leaves take different structures.
This houseplant is gaining popularity, and under perfect indoor conditions, the plant grows up to 6m tall, which makes it a signature statement plant for any indoor place.
The variegation on the Monstera Thai Constellation is stable, which differentiates it from the variegation on the Variegated Monstera Deliciosa Borsigiana.
It is an upward climbing shrub and is currently in high demand among gardeners and indoor plant lovers around the world.
The distinctive leaves have cream and green variegation with large holes, which can grow up to 3″ wide in size. In some cases, the leaves can grow up to 12″ in size.
The unique marble pattern on the plant leaves is caused due to a lack of chlorophyll; not surprisingly, this rare mutation increases the price of the plant.
The pattern resembles a starry constellation hence the name Monstera Thai Constellation.
If you are about to add one to your indoor plant collection, continue reading,
I have collected all the information to care for this beautiful tropical plant and have multiple specimens in my care at the moment.
- 1 Monstera Thai Constellation Care Guide
- 2 Common problems with a Monstera Thai Constellation
- 3 Best Tips for the Monstera Thai Constellation care
- 4 Frequently Asked Questions About Thai Constellation
- 5 Conclusion
Monstera Thai Constellation Care Guide
Compared to other varieties of Monstera, the Monstera Thai Constellation is less drought tolerant and has a slower growth rate.
But this uniquely patterned plant is generally easy to care for.
Some of the Thai Constellation plants produce new leaves every month. But the frequency of the growth depends on the care you provide to your plant.
From my personal experience, they can also grow very slowly and it is not uncommon that these plants are going to do absolutely nothing in the first 3-6 months they arrive at your house.
Patience is a virtue they say.
Lets now have a look at the different aspects of Monstera Thai Constellation care.
Monstera Thai Constellation loves moist soil with high organic matter and nutrients.
Choose a peat-based soil mix that is light and airy to reduce the chances of overwatering the plant, especially in cold months.
The potting mix should consist of the right amount of bark and perlite to aid in draining.
This tropical plant needs soil with a pH of 5 to 7.5.
If the compost is excessively dry, the leaves start turning brown.
In short, the soil should be kept moist in summer months and slightly dry in winter months.
Choose a bright area or room with plenty of light for the Monstera Thai Constellation.
But this plant should never be placed in direct sunlight as it will damage the leaves.
If the plant receives less light than required, the growth of the plant will slow down.
The yellow or creamy part of the leaves cannot absorb the sunlight; therefore, low light conditions are not preferred. Else the plant has to struggle twice as hard for photosynthesis.
The sunlight given to the plant needs to be filtered; this is done by diffusing the light using sheer curtains or textured glass windows.
If there aren’t many options for good lighting in your house or apartment, use indoor fluorescent lights or artificial lights. An hour or so of morning sun is good for the plant’s health.
I would also recommend aerating the soil of the plant before its initial watering. It will help in moisture release and allow the soil to breathe.
The aerial roots of plants are sensitive to overwatering; avoid keeping the plant in soggy soil for long periods to prevent root damage.
Root rot is actually quite common on these plants and I had to deal with this issue several times on multiple Monstera Thai Constellations I care for.
Somehow they seem to be more susceptible to root rot than the variegated Monstera Deliciosa so really try to be on the safe side when watering.
If the top 2″ of the soil is dry, your plant needs water. Always check the moisture level before watering your Monstera plant.
You may use a moisture meter to track the moisture level more precisely. Water the Thai Constellation regularly once a week, but decrease watering in colder months.
Filtered water or rainwater is recommended by most professional gardens, its more beneficial for plant health.
In the case of under-watering, the plant will have slower growth and will start wilting.
Whereas if you notice water droplets or perspiration on the leaves, you might be overwatering.
In winter, you should allow more time between waterings to make sure the soil has enough time to dry properly.
Do not place the Monstera Thai Constellation near vents or drafts as the plant does not enjoy dry weather conditions.
In excessively dry conditions, the plant might start dropping leaves. As a tropical plant, Monstera Thai Constellation prefers humid weather. In fact, high humidity results in a faster growth rate.
If the indoor humidity is too low, the tip of the leaves will become brown and crispy. Increase the humidity by misting the leaves instead.
Keep the humidity at 60% or above for the best results.
The perfect temperature for the Thai Constellation plant is between 64°F − 70°F (18 to 21 degrees Celsius). The Monstera Thai Constellation is not frost hardy.
Any temperature lower than 64°F (18 degrees Celsius) will slow down the growth of the plant, whereas temperatures lower than 50°F 10 degrees Celsius will eventually stop the growth.
The Monstera Thai Constellation requires not a lot of pruning in general, which makes it a low-maintenance indoor plant.
Pruning is recommended to control the size of the plant and to remove the dead or damaged foliage.
If your Monstera plant has grown too big, you can prune the plant to manage growth.
If you are going to repot the Monstera Thai Constellation plant in the same pot after refreshing the soil, you might have to prune the underground roots as well.
This can be good practice in case you are not able to upgrade the pot to a bigger one.
For your safety, you should always wear gloves while pruning your plants.
Doing this will also reduce the risk of transferring any unwanted pests or diseases to your Monstera plant or other plants.
Always sterilize your cleaning tools. You can do this by wiping them with isopropyl alcohol.
A balanced fertilizer is necessary to provide the plant with all nutrients for the leaves to grow and to keep the plant stable.
Monstera Thai Constellation is a slow-growing plant, but you can use an organic house plant fertilizer in the summer and spring season.
To encourage new growth during these two seasons, apply the fertilizer once every month.
I would recommend a slow-release fertilizer for the Thai Constellation, fertilize sparingly away from the base of the plant.
You can apply the fertilizer as slow-release pellets or as a liquid.
I would suggest liquid fertilizer as it will give you more control of the feeding and amount.
You do not need to feed the plant with fertilizers in winter months.
Not all parts of the Thai Constellation will propagate. For example, leaves with no stem, aerial roots with no stem, or the stems with no nodes and leaves cannot grow a new Monstera plant.
Use a high-quality rooting hormone to help the plant produce more roots in less time and protect it from fungal or bacterial infections.
No two leaves are the same at a Variegated Monstera Thai Constellation.
Similarly, each propagated plant is unique.
Since the variegated varieties are quite expensive compared to other houseplants, propagation is an easy way to expand your plant collection.
The easiest way to propagate a Monstera Thai Constellation is through cuttings.
You just need a pair of sharp scissors, a pot of soil or water. Three common methods of propagation are:
Propagation By Stem Cuttings
- Use a clean knife or pruning shears and cut a portion of your plant stem with at least one node and leaf, including aerial roots are optional.
- Including the leaves will increase the growth potential of the new plant and nodes with grow new aerial roots.
- The time of the year is crucial because the cuttings will take longer to grow in winter as the plant is dormant.
- Now choose a growing medium for the cutting, put it 1 or 2 inches deep in moist soil or water. If you use water, you can easily check the progress of the plant.
- For propagating in the water I would recommend using rain or distilled water. Also, add some seaweed in the water to provide some nutrients for growth.
- Place the stem cuttings in a warm and bright location for fast sprouting.
- If you are propagating in water, change the water regularly. Whereas in soil water it regularly(once a week) to keep the soil moist.
- When you notice some new root growth and leaves, transfer the plant to a suitable container.
- Fertilize the propagated Thai Constellation only when you notice some new growth, which will typically take 3 – 6 weeks.
Propagating by Separation
If you have a large Monstera plant, you can propagate it by separating the plant into two or more plants. This way you can minimize the large Monstera Thai Constellation to a manageable size:
- Before separating water the plant and allow the soil to dry.
- Now carefully remove the plant from the pot, you might need some additional help if the plant is too large or if it has climbing support.
- Using a knife or scissors cut and divide the roots between making two or more plants. Do this carefully without breaking any stems or leaves.
- Choose a pot 2-4 inches larger than the root ball and pot each plant in a clean pot with fresh soil.
- Place the propagated plant in a bright location and water the plant regularly.
- You can start fertilizing the plants after one month of planting them.
Propagation by Air Layering
In this method, you are encouraging the aerial roots to expand on the plant before taking the stem cuttings.
- Choose the stem you will use for cutting. Make a small cut at the node below this stem with a clean knife or shears.
- Wrap the cut and node with damp sphagnum moss using a plastic wrap or propagation bag and lock it with a string or tie.
- After every two or three days, remove the wrapping and spray the sphagnum moss with filtered water.
- After two months or so, you will notice new healthy and strong roots growing from the node. Take the stems cutting and plant it in a new pot.
Monstera Thai Constellation is a slower-growing indoor vine plant as compared to the solid colored varieties of Monstera.
The adult plant can take between one to two years for full development.
The growth of the Monstera Thai Constellations typically depends on sufficient light, water and nutrients mostly.
The ideal condition for growth is bright indirect light and consistent watering. The plant can grow 1-2 feet taller every year.
Read our guide to select the right light level for your Monstera Thai Constellation.
The Variegated Monstera needs to be repotted every two years.
Use a pot one size bigger than the previous one.
If you use a very large pot, the plant roots will drown.
Use an organic potting mix with the recommended fertilizer.
Repot your plant in the summer or spring season as the plant is then strong enough to handle the risk of transplant shock.
Using the same pot will restrict the size of the plant, this should be done if you do not want the plant to take over or get any bigger. Follow these simple steps below to repot your plant:
- Remove the Thai Constellation plant from the pot and thoroughly inspect the root system.
- Fill half of the container with a rich potting mix and water the soil to help it settle. Always use a container with drainage holes.
- Place the supporting structure to encourage vertical growth.
- Now place the Thai Constellation plant in the middle of the pot and backfill the pot with potting mix.
- Water the soil again and place the plant in a warm location with bright, filtered light.
Common problems with a Monstera Thai Constellation
Like any other houseplant, the Monstera Thai Constellation is vulnerable to pests and diseases.
Preventive measures for your houseplants are to inspect your new plant for any bugs once it arrives and quarantine it for a few days before you put it where your other plants reside.
Below are some common pests and diseases that affect the Monstera Thai Constellation including preventive treatments:
When the leaves are yellowing or wilting and the stems are dying, your Thai Constellation plant is probably suffering from root rot.
Overwatering is the most common reason for root rot, in overwatered conditions, the roots cannot breathe, and there is a lack of oxygen. The roots affected by root rot are black and mushy.
Root rot can spread and easily damage the healthy roots as well, therefore inspect the plant roots regularly and prune the damaged roots immediately.
Sometimes a dormant fungus in the soil can also cause root rot. Repot the plant in fresh soil to encourage new growth.
Treating root rot as soon as possible is essential for the survival of the plant.
Remove the Monstera Thai Constellation plant from the soil and wash the roots under running water.
Now use a clean and sharp pair of scissors to prune the damaged roots.
Dispose of the soil and clean the pot with a bleach solution to disinfect it. You can further reduce the risk of over-watering by improving the drainage
They are white colored bugs and are mostly found on new growth,. They suck the sap from leaves and stems of the Thai Constellation plant.
These pests are commonly located on the leaf joints or the veins of the leaves.
If the Thai Constellation is infested with mealybugs, the growth is stunted, the leaves are deformed, yellowing, and may start dropping.
Mealybugs can also come from contaminated soil, so always inspect your newly bought Monstera Thai Constellation plant for any bugs.
Separate the infected plant from other healthy plants to stop the spread of the bugs to houseplants. Now clean the plant leaves and stems with rubbing alcohol to get rid of mealy bugs. Inspect the underside of the leaves and joints for these tiny white bugs. If your plant is small, wash it with soap and water. For larger plants, spray them with insecticidal soap.
To protect the plant from mealybugs, spray it with insecticidal soap regularly.
Alternatively, you can also use neem oil, which an effective pest control product for houseplants.
Spider mites are serious houseplant pests and difficult to detect with the naked eye.
Inspect your plants for tiny, dusty webs under bright light. Blotches or patterns on the leaves are other indications of spider mites.
They thrive in warm conditions such as those provided for the Monstera Thai Constellation.
These pests suck the cells from the plant and reduce the photosynthesis resulting in yellow leaves.
Remove the infested part of the plant and dispose of it if possible.
Increase the humidity near the Monstera Thai Constellation to stop the growth of spider mites.
Disinfect your gardening or indoor houseplant tools after each use.
They are small white insects that feed on the moisture in houseplants. Thrips cause discolored leaves, dehydration, and browning.
If one or two leaves of the Monstera Thai Constellation are infected with thrips, you can prune these leaves to get rid of the thrips.
For more severe infections, you can use neem oil spray, which is a natural insecticidal.
Just spray the infected leaves with neem oil to get rid of the adult thrips and eggs.
Another option is to use diatomaceous earth on leaves, which kills the bugs or insects.
If your plant can be easily moved take it the bathroom or outdoors to blast it off gently with water. This will remove any eggs or insects still sticking to the plant.
They are sap-sucking insects closely related to mealybugs or armored scale insects.
Soft scales suck the liquid from the phloem cells of the plant.
If the plant is heavily infested, you may notice yellowing leaves and premature falling. A clear, sticky substance known as honeydew is seen on the leaves.
Remove the branches that are heavily infested and dispose of them.
Rub alcohol-soaked cotton or neem-based leaf shine on the affected areas.
You can also use insecticidal soap, mix a few drops of washing liquid with vegetable oil and dilute in water.
Organic soaps or oils are considered more effective against the soft scale compared to any chemical treatment.
The salt buildup is one of the common problems that cause yellow leaves and burned tips; it will also prevent the plant from soaking up the water properly.
Overfertilizing can create salt buildup; you should flush the soil with water every few months to remove any buildup.
If the pot is small enough, you can place it in a sink or bathtub and allow the water to run through it slowly.
Later allow the water to drain properly from the pot and place the pot back at its previous position.
If the plant is quite large to flush indoors. Take it outside and water it with a hose for about 5 minutes. After draining the excess water, bring the plant indoors.
Best Tips for the Monstera Thai Constellation care
- Monstera Thai Constellation can grow quite tall when it is fully developed. Provide a sturdy support such as stakes or moss sticks to support its aerial roots and encourage growth.
- If the tips turn brown, you don’t have to cut the whole leaf. Just trim the brown part following the original shape of the leaf.
- Rotate your plant occasionally to ensure proper watering from all sides.
- You should dust the leaves of your plant frequently; else, the accumulated dust will impact the photosynthesis process.
- Regularly clean the leaves of the Thai Constellation with neem oil to prevent any bugs or insects.
- Monstera Deliciosa Thai Constellation has a deep root system; therefore, gardeners recommend a deep container instead of a shallow one for proper root growth.
Frequently Asked Questions About Thai Constellation
Why are the leaves on my Monstera Thai Constellation plant turning brown?
The top two reasons for this are that either the plant is receiving too little light or there is a salt buildup. Move your Thai Constellation plant to a location with better lighting conditions. It will help the plant in chlorophyll production. This variety is sensitive to salt buildup, don’t use tap water or let the water sit for a few hours before watering. This way, many minerals and chemicals will evaporate from the water reducing the salt buildup.
Why is my indoor Monstera plant turning yellow?
The common reason for the yellowing of plants is overwatering. Observe your plants watering needs to avoid overwatering. Another reason could be the size of the pot. Your plant might be rootbound and needs a bigger pot for growth. If the roots are visible on the topsoil and twisting around the pot, the plant needs to be repotted.
Is the Monstera plant poisonous?
Yes, Monstera is poisonous. Always make sure you are keeping this plant away from children and pets. Sometimes the sap of the plant can cause irritation. Consumption can cause swelling, burning, or vomiting in pets.
Variegated Monstera Thai Constellation is extremely popular among indoor gardeners and plant enthusiasts and a must for aroid lovers.
This Monstera plant enjoys a warm, humid climate, a decent amount of water, and gentle sunlight.
With the unique heart-shaped leaves and the very unique variegation, the Monstera Thai Constellation it the envy of many.