How to Grow Pencil Cactus from Cuttings 🌵 | Easy Euphorbia tirucalli Propagation
Hello friends! 🌿 Welcome back to Plants & Life.
Today I want to share one of the easiest succulent propagation experiments I have tried on my terrace: how to grow Pencil Cactus from cuttings, also known as Euphorbia tirucalli.
Honestly, this plant can look a little strange at first. There are no big leaves, no colourful flowers demanding attention, and the thin green branches almost look like a bundle of pencils growing out of a pot. But that is exactly what I like about it. Once established, it is a tough and interesting succulent.
What surprised me was how important the first few days after taking a cutting were. I initially thought, “It is such a hardy plant, surely I can just put the cutting into soil and water it.” That sounds reasonable, right? Well... that is also how many succulent cuttings end up rotting. 😅
In this post, I am sharing the method I used, the growing medium I preferred, what I noticed after a month, and one or two mistakes that are very easy to make while rooting a Pencil Cactus cutting in an Indian terrace garden.
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🎥 Watch My Pencil Cactus Growing Experiment
🌵 First, One Important Thing: Pencil Cactus Is Not Actually a Cactus
Although almost everyone calls it a Pencil Cactus, Euphorbia tirucalli is not a true cactus. It belongs to the Euphorbia group and behaves more like a drought-tolerant succulent.
It loves warmth, bright conditions and, most importantly, soil that does not stay wet for too long. At least on my terrace, the biggest danger was never lack of water. It was too much water.
One mistake I made initially with several succulents was watering them according to a calendar. “Every two days.” “Every three days.” It sounds organised, but plants do not know what day it is. 😄 A hot, dry week and a cloudy, humid week are completely different.
Over time I realized that checking the condition of the growing medium is much more useful than blindly following a watering schedule.
⚠️ Handle Pencil Cactus Very Carefully
This is something I really do not want anyone to ignore. When a Pencil Cactus branch is cut or damaged, it releases a white milky latex.
The sap is irritating and poisonous. It can cause serious irritation, especially if it gets into the eyes, and eye exposure can be dangerous.
- Wear gloves while taking cuttings or pruning.
- Keep the sap away from your eyes, mouth and skin.
- Wash your hands and tools properly after handling.
- Keep the plant away from curious children and pets.
If sap gets into the eyes, rinse thoroughly with clean water and seek medical attention promptly.
✂️ How I Prepared the Pencil Cactus Cutting
This step is probably the most important one.
After taking a healthy cutting, I did not plant it immediately. I kept it in a warm, dry and airy place for around 4 to 6 days. The purpose was to allow the cut end to dry and form a callus.
I noticed that fresh succulent cuttings are much more vulnerable when their open wound is pushed straight into a wet medium. The callusing period gives the cut end time to dry before it comes into contact with moisture.
There is no need to keep the cutting in harsh direct sun during this stage. A dry, bright and well-ventilated spot is enough.
If the weather is very humid, the cutting may need a little longer. Do not rush this part just because you are excited to plant it. I know the feeling. 😄
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🪴 My Preferred Growing Medium for Rooting
For rooting this cutting, I personally preferred a mostly inorganic and very porous medium.
In this experiment, I used cinder dust. It was light, airy and allowed water to drain quickly. What I liked most was that the cutting was not sitting in a heavy, wet medium.
In my experience, that is especially helpful when rooting succulent-type plants. The roots need oxygen as well as moisture. A dense medium that remains soggy can create more trouble than benefit.
You can also use other well-draining materials available in your area, such as coarse sand, perlite, pumice or a suitable gritty succulent mix. The main idea is simple: do not use a heavy medium that stays wet for days.
🏺 The Pot Setup I Used
- I selected a terracotta pot with a proper drainage hole.
- I covered the drainage hole with a small piece of cloth so the medium would not wash away.
- I added a little gravel at the bottom.
- I filled the pot with the porous cinder-based growing medium.
- I placed the callused Pencil Cactus cutting upright in the centre.
- I made sure the cutting was stable but did not bury it unnecessarily deep.
Terracotta is not compulsory, but I like it for this kind of plant because the pot itself also breathes and dries faster. That can be useful in a humid Indian climate, especially during rainy periods.
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🤯 Crazy Fact: This “Cactus” Can Grow Into a Huge Plant!
When we keep Pencil Cactus in a small pot, it is easy to think of it as just a compact decorative succulent. But Euphorbia tirucalli can grow into a large, tree-like shrub in warm climates.
The thin green stems also perform photosynthesis, which is why the plant can thrive despite having very tiny or almost absent leaves. Honestly, the first time I started noticing those green stems as the plant's main “solar panels”, I found it pretty fascinating. 🌿
💧 Watering a Newly Planted Pencil Cactus Cutting
This is where I would be a little careful about giving an exact “water every three days” rule to everyone. That timing worked in my conditions, but your terrace may be hotter, cooler, more humid or completely different.
After planting, give water according to the moisture level of the medium and the condition of the cutting. With a very porous medium, it can dry relatively quickly. With humid weather, it may take longer.
At least on my terrace, I always preferred allowing the medium to dry noticeably before watering again. Pencil Cactus is much more forgiving when you wait a little than when you keep its roots constantly wet.
During heavy monsoon weather, I would also protect newly planted succulent cuttings from continuous rain. Constant rain plus poor drainage is one combination I really try to avoid.
🌤️ Where Should You Keep the Cutting?
I kept my newly planted cutting in bright semi-shade during the initial rooting period.
Once I could see that it had settled and started growing, it could gradually receive more light. A sudden move from shade to strong afternoon sun can stress any newly rooted cutting, so I prefer changing its conditions slowly.
Over time I realized that gradual adjustment is one of the simplest gardening habits that saves a lot of plants. We often focus on fertilizers and special products, while sometimes the real solution is simply not shocking the plant. 🌱
🌱 What I Noticed After About One Month
This was the part I enjoyed most.
After around a month, the cutting had started settling in nicely. New growth was visible, and when I checked underneath the pot, I could see tiny roots beginning to come through the drainage hole.
That little moment is always satisfying for a gardener. You spend weeks wondering, “Is it actually rooting, or is it just standing there pretending to be alive?” 😄 Then suddenly, there is new growth or a root appears at the bottom.
What surprised me was how quickly the plant responded once the roots became established. The airy medium seemed to give the developing roots a comfortable environment without trapping too much water around them.
I would not call any propagation method a guaranteed 100% success for every gardener, because weather, cutting health and watering habits can all change the result. But this method gave me a very encouraging result and is definitely one I would use again.
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❌ Common Mistakes I Would Avoid
- Planting a fresh cutting immediately: Give the cut end time to dry and callus.
- Using heavy garden soil: Dense, water-retentive soil can increase the risk of rot.
- Overwatering: This is probably the biggest mistake with Pencil Cactus and many other succulents.
- Keeping the pot without drainage: No drainage is risky, especially during humid or rainy weather.
- Putting a weak cutting into harsh sun: Let it root first, then gradually increase sunlight.
- Ignoring the latex: The white sap is not something to handle casually.
📝 My Quick Pencil Cactus Cutting Formula
- ✂️ Take a healthy cutting safely.
- 🌬️ Let the cut end dry for about 4–6 days.
- 🪨 Use a light, porous and well-draining rooting medium.
- 🏺 Use a pot with proper drainage.
- 🌤️ Keep the new cutting in bright semi-shade initially.
- 💧 Avoid keeping the medium constantly wet.
- 🌱 Be patient and watch for new growth.
🌵 Why I Think Pencil Cactus Is Great for Indian Home Gardens
Once properly established, Pencil Cactus can be a very low-maintenance plant. It suits people who love unusual-looking plants but do not want to spend every morning checking for new leaves and flowers.
In a warm Indian climate, it can grow very well with bright light and careful watering. I particularly like its sculptural shape. Even without flowers, a mature plant can become a strong visual feature in a terrace or garden corner.
It also made me appreciate desert and succulent plants in a different way. They may look simple, but their survival strategies are honestly fascinating.
🙋 Frequently Asked Questions About Pencil Cactus
How long does it take for a Pencil Cactus cutting to root?
It can vary with temperature, humidity, the health of the cutting and the growing medium. In my experiment, I noticed clear signs of establishment within about a month.
Can I grow Pencil Cactus from a cutting in normal garden soil?
It may grow, but heavy soil that holds water for a long time increases the risk of rot. A much lighter and better-draining medium is generally safer for rooting.
How often should I water Pencil Cactus?
Do not follow a fixed number blindly. Check whether the growing medium has dried. Hot weather and humid weather can change watering needs dramatically.
Does Pencil Cactus need full sunlight?
An established plant can handle bright conditions, but newly planted cuttings are better introduced to stronger sunlight gradually.
Is Pencil Cactus safe for pets and children?
The plant's milky latex can be irritating and harmful. It is better to keep it away from children and pets.
🎥 Watch the Complete Video Tutorial
🌿 Final Thoughts From My Terrace Garden
If I had to describe this propagation experiment in one sentence, I would say: the secret was not doing too much.
Let the cutting dry. Give it an airy medium. Do not drown it with love and water. Then give it time.
Sometimes gardening is exactly like that. We want to keep interfering because we are worried. But plants often do better when we create the right conditions and then simply let them do what they know how to do. 🌱
If you have tried growing Euphorbia tirucalli from a cutting, I would love to know how it went. Every terrace, balcony and garden creates slightly different results, and that is one of the reasons gardening never gets boring.
💚 Thank You for Reading!
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