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propagate pencil cactus Buy 'Pencil Cactus - Euphorbia tirucalli Firesticks' Care and Growing Guide

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propagate pencil cactus Buy 'Pencil Cactus - Euphorbia tirucalli Firesticks' Care and Growing GuideIntroducing the Pencil Cactus, botanically known as Euphorbia tirucalli Fire Sticks (also called Sticks on Fire), a striking succulent prized for its sea coral like appearance and vibrant, loosely branching pencil thin stems that develop brilliant shades of green, orange, and red. Native to Southern Africa, this unique succulent belongs to the Euphorbiaceae (spurge) family, not the cactus family (Cactaceae), though it is commonly referred to as Pencil

Introducing the Pencil Cactus, botanically known as Euphorbia tirucalli ‘Fire Sticks’ (also called Sticks on Fire), a striking succulent prized for its sea coral-like appearance and vibrant, loosely branching pencil-thin stems that develop brilliant shades of green, orange, and red.

Native to Southern Africa, this unique succulent belongs to the Euphorbiaceae (spurge) family, not the cactus family (Cactaceae), though it is commonly referred to as “Pencil Cactus” because of its cactus-like form and upright growth habit. It is also known by several other common names, including fire sticks plant, sticks on fire succulent, fire plant, red pencil tree, milk bush, and Euphorbia tirucalli ‘Rosea’.


When exposed to direct sunlight, the tips turn red, which is why they are also called firesticks.

This fast growing evergreen succulent can grow up to 30 feet tall and 10 feet wide, forming a thicket of brilliantly colored vertical stems with loose branches.

The unusual stems of this firestick plant, which are as thin as pencils, have a reddish-golden hue that becomes yellow in the summer and red again in the winter.

The pencil cactus flowers boast vibrant yellow, pink, or orange blooms in the summer and spring, making them a true showstopper in any garden.

The pencil cactus is extremely drought tolerant and hard to kill, and as a result, is a great, low-maintenance, easy-care plant for your home or garden.

You can grow your pencil cactus indoors year-round as a houseplant. If planting outdoors, it's best to do so in the spring when temperatures are warm and stable. This cactus grows faster than many other cacti, making it a striking addition to your garden or home.

If you cut your pencil cactus, be careful—the thick, white sap is toxic and can cause skin irritation, burns, or severe eye irritation if it gets into your eyes. While highly irritating, some cultures have historically used it in traditional medicine for treating growths like warts and tumors, though it is not safe for home remedies. Always wear gloves when handling the plant and wash your hands thoroughly if you come into contact with the sap.

When and How to Water Your Pencil Cactus 

This pencil cactus firestick plant can withstand droughts and doesn't need to be watered frequently to survive. Watering these perennial succulents should be done every 3–4 weeks or when the soil feels dry. Let the soil completely dry out between waterings, and if in doubt, give your fire plant a little more time before watering again.  Less water is needed for humid locations and indoor spaces. Pay attention to how the pencil cactus looks and adjust the watering accordingly.

Remember that succulents in the desert can go for weeks or even months without water, so water them sparingly during their rest phase and moderately during their active growing season.

Pro Tip

Most people like to see the red tips that give this Euphorbia tirucalli its firestick name. Note that it is stress that causes the tips to go red. So, the art is to stress the firestick plant a bit, but not too much. So, give it a lot of light and water it less than other succulents, so it is thirsty but not dying of thirst.

Overwatering can also cause the Euphorbia tirucalli 'Firesticks' tips to turn red, but it can also lead to root rot and other problems. So, if your pencil cactus is not turning red in full sun, it's possible that it's not experiencing enough stress to produce the anthocyanin pigments or that it's receiving too much water.

Light Requirements - Where to Place Your Pencil Cactus 

Like most succulents, indoors, the Euphorbia tirucalli firesticks need bright, indirect sunlight to thrive, so choose the brightest area in the house.

Potted indoor pencil cacti require four hours of direct sunlight, which can be achieved by locating them on a sunny south or west-facing windowsill. 

If you are growing these firestick succulents outdoors, make sure that they receive at least six hours of direct sunlight per day.

Partial shade may be tolerated as long as your pencil cactus gets the majority of the sunlight that it needs when it's planted outside. This succulent plant won't thrive if left in the shade for a long time. Its colors become more vibrant the more sunlight it receives.

In order to avoid sunburn, it is preferable to acclimatize your pencil cactus first before moving it outdoors or increasing the amount of sunlight it receives.

Optimal Soil & Fertilizer Needs 

The firestick Euphorbia is a succulent plant that likes very airy, porous, nutrient-rich soil with a pH of 5.5–6.5. Succulents require fast-draining soil that dries completely between waterings. Ideally, you want to use our specialized potting mixGo to soil cactus mix blend 1 gal 4 qt cacti succulent dirt compost growing media that contains 5 natural substrates and organic mycorrhizae to promote the development of a strong root system that helps your Euphorbia firesticks Pencil Cactus to thrive. 

When it comes to fertilizing your pencil cactus plant, it only needs a small amount of fertilizer applied once a year in spring. Cacti prefer a fertilizer with lower doses of NPK, with a maximum ratio of 5-10-5 that is higher in phosphorus than nitrogen.

Hardiness Zones & More 

When growing indoors as a houseplant, the Euphorbia firestick can tolerate temperatures between 65 °F and 75 °F. Your Euphorbia firestick plant performs well in temperatures above 30 °F. However, it can withstand temperatures below that, but only for short periods of time.

In the United States, the Euphorbia tirucalli is mostly an indoor plant, but if you live in southern Florida or Hawaii then you can cultivate it outdoors in USDA zones 10 -11.

Growing these pencil cacti in containers is the best option if you live in an area with harsh winters.

By doing this, you can bring your Pencil Cactus indoors during the winter or any time there's a chance of frost or snow. Normal house humidity is fine for this Euphorbia, but it prefers dry conditions. 

Wildlife - Euphorbia tirucalli Attracts the Following Friendly Pollinators

The Euphorbia tirucalli flowers attract a variety of pollinators, such as bees, butterflies, and hummingbirds, with their bright colors and sweet nectar. These pollinators play a crucial role in the ecosystem by helping to fertilize plants and promote biodiversity.

Butterflies
Bees
Hummingbirds
Lady Bugs
Multi Pollinators
Other Birds

According to ASPCA, the Euphorbia tirucalli 'Firesticks' is mildly toxic to humans and pets. It can irritate the skin, eyes, and gastrointestinal tract. However, it is safe to touch as long as precautions are taken to avoid contact with the sap. Wear gloves when handling this plant to prevent any potential skin irritation.

How to Propagate Your Pencil Cactus

When it comes to pencil cactus propagation, one common method is through stem cuttings. Simply take a cutting from a healthy pencil cactus, let it dry for a few days, and then place it in well-draining soil. Another method is through division, where you carefully separate the offsets or side shoots from the main plant and plant them individually.

Key Takeaways

  1. The stems of firesticks are as thin as pencils (hence the name) and turn a fire-red in the winter.
  2. Euphorbia Firesticks is a stunning variety that changes color with the seasons, turning bright red or orange tips in cooler temperatures or full sun.
  3. This succulent has a rapid growth rate, reaching up to 30 feet tall when grown outdoors, with a branching, upright form.
  4. During the spring and summer, the yellow flowers bloom in clusters on the end of the branch, usually for just a few days.

The Bottom Line

Overall, the pencil cactus (Euphorbia Firesticks) is a unique and striking succulent plant that adds a touch of elegance to any space. With its slender, pencil-like stems and vibrant green color, this sticks-on-fire cactus can truly be a showstopper. However, it's important to remember that the pencil cactus is not a true cactus but rather a succulent. It requires minimal care, preferring bright light and well-draining soil. By providing proper pencil cactus care, you'll have a beautiful and unique Euphorbia firestick plant that will thrive for years to come. 

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tfabglam5
New York, US
★★★★★ 5
Sustained Energy on Demand
I am always on the lookout for a high quality supplement that provides me with energy, focus and brain support. And ... at a reasonable price. This is it! I am post menopausal and also have hypothyroid disease, so I need any kind of extra help I can get to keep me going without crashing. I take 2 capsules on an empty stomach first thing in the morning before I leave for work. By the time I get to work, I am "ready and rarin' " to go. If I miss taking Awakening, I feel tired, sluggish and unmotivated. This really helps to keep me going throughout a very long day. I usually leave home before 7 am and return home after 7 pm nearly 5 days a week. Don't hesitate to give this a try and see for yourself how good and energized you will feel. It's that extra help that will keep you going so that you can get things done and stay on-task.
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Reviewed in the United States on February 28, 2021
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Karen Joan
San Leandro, US
★★★★★ 5
A Martian Named Smith
There is no question that Robert Anson Heinlein is one of the Fathers of Science Fiction. There is also no question that STRANGER IN A STRANGE LAND is his most famous work, having been called "the most famous science fiction novel ever written." Is it his best? Perhaps not. But it is a ground breaking classic, one that I enjoy reading again and again. STRANGER IN A STRANGE LAND is the story of Valentine Michael Smith (Mike), a male born of human parents on the first Earth colony ship to Mars. Literally born as the ship landed on Mars, Mike's parents and the rest of the crew died, and Mike was raised by Martians. 25 years later, a second Earth colony ship lands on Mars, and discovers Mike, the native inhabitants of Mars, and a host of unanswered questions. Mike returns to Earth, and STRANGER IN A STRANGE LAND is the detailed chronicle of his introduction to, interaction with, and transformation of human culture. STRANGER IN A STRANGE LAND was Heinlein's first truly adult science fiction novel, and he took on some pretty heady topics. Politics, religion, sex, equality, and the concept of a truly un-human culture (which happened to be superior), to name a few. Heinlein wove these themes into STRANGER IN A STRANGE LAND, each of which contributed to his idealistic vision of a perfect world.He intermixed shock value, logic, and plain good storytelling to get his points across, and I think he did so quite wonderfully. 1. Religion. Heinlein was not an atheist, as some have claimed. He did believe in a higher power; what he did not have any use for was organized religion. He believed in faith. If you had faith, true faith, then the trappings of religion were unnecessary and superfluous. They just did not matter. The Church of All Worlds in STRANGER IN A STRANGE LAND was set up to show that no matter what the religious trapping were, it was faith that really mattered. He also created a religion where happiness and self-belief were the main drivers, rather than fire, brimstone, and fear. Makes great sense to me. 2. Sex. Contrary to popular belief, STRANGER IN A STRANGE LAND did not promote promiscuity or free love. What Heinlein did was to create a world where people were open about sex, where it was enjoyable and exciting, but with it came great responsibility. In this world, sex wasn't hidden, secret, or naughty; rather it was honest and pure and fun. People who could develop this utopian attitude became happier, healthier, less jealous, more caring, and, yes, more sexual. Responsibility to partners, offspring, and an entire extended family became the norm. In his own way, by exploring sexuality, Heinlein was exploring and redefining the meaning of family. He was also trying to define sex as a miraculous union, and to show that humans should treat it as the miracle of bonding and "growing closer" that it is. 3. Equality. Before the sexual revolution and equality for women, Heinlein clearly believed in equality of the sexes, equality of the races, equality of faiths...basically the equality of all humans. Yes, he felt women should be treated with respect and reverence and be protected and nurtured because they gave birth and perpetuated the species, but he clearly believed that they were intelligent and capable. He also believed that women had sexual needs equal to those of men and had the right to pursue those needs. 4. Politics. In STRANGER IN A STRANGE LAND, Heinlein clearly had little use for government, politics, or politicians. He believed that government in general was a necessary evil, but preferred that it be kept small and out of his business. He didn't care what it was based on or what guided it - astrology was the ridiculous example used in STRANGER IN A STRANGE LAND - as long as it left him alone. Works for me. He also had little use for entitlements, and expected human beings to work for what they received. Again, works for me. 5. Un-Human, Superior Culture. Heinlein did a remarkable and revolutionary thing when he created the Martian culture of STRANGER IN A STRANGE LAND. The Martians of this novel are clearly not humanoids from another planet. They do not think like humans, act like humans, look like humans, reproduce like human, live like humans, or do anything like we do here on the planet Earth. There is nothing remotely recognizable about these Martians; they are completely alien. We can't them, and they can't understand us. They are older, more advanced, and can perceive the universe around them in ways that humans do not. But humans can, if properly taught, learn some of the things that Martians do. What a marvelous concept. In 1962 the original version of STRANGER IN A STRANGE LAND won the Hugo Award for the Best Science Fiction Novel of the Year. After Heinlein's death in 1988, his wife Virginia discovered the original uncut manuscript and arranged to have it published in 1991. It is interesting to read the two books side by side, to see the differences, and to compare them. I enjoy both versions very much, and am still not sure which is my favorite. Whatever version you choose, I HIGHLY RECOMMEND STRANGER IN A STRANGE LAND. Whether you have read it before or not, whether you love it or not, you will find it to be an interesting and thought-provoking read.
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Reviewed in the United States on June 20, 2009
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Marcel Dupasquier
Birmingham, US
★★★★★ 4
A strange book I don’t grok
I have started to read this book directly after I had read “The Moon is a harsh Mistress” and after the first chapter, I almost stopped reading again. The first chapter starts promisingly enough, after a Mars expedition with only four couples, finding the fitting couples that contained all the required capabilities in themselves had been difficult enough, had failed, years later, another expedition is started, and this time, the flight takes much shorter. They find a young man there and bring him back, but how they treat him here, locked and no women allowed, for the first time really showed me how old Robert Heinlein’s books really are and here, for the first time, it was an annoyance. What would happen if a woman would visit him? We find out in the second chapter, and the answer is, basically, nothing. Then, for about 10% of the book, we get Jill, working in the hospital where the Man from Mars is kept, discussing with Ben, a journalist, about the implication of the Man from Mars. Once he owns the whole Mars, once he owns a majority of Lunar Enterprises. In any case, the government under the Secretary General cannot keep him alive. Then, finally, some action occurs: Ben tries to get the Man released, but fails miserably; Jill subsequently tries to prisonbreak with the Man. They escape to Ben’s place but the henchmen are not far away. They ring at the door, there is a confrontation and... it’s over. They go to another benefactor, Jubal, who keeps Jill and the Man hidden for rest of almost half of the book. There, Jubal thinks about how to help the Man, together with getting Ben back, while he tries to learn as much as possible about the Martian and Mars. Then, the henchmen appear again, ready to arrest everybody, and after the Martian makes the policemen disappear once more, Jubal eventually manages to bluff the Secretary General into calling back the second arresting team and agreeing to meet with the Man from Mars with him, Jubal, as the official delegate for the Martian. At the meeting, Jubal does what he can to make the Man’s live safe: He gives the Secretary General the mandate the manage the money of the Martian with the payment as much money as he sees fit. Having thus secured the Martian’s safety, the Martians keeps living at Jubal’s place and learning. They visit a service of the Fosterite church, where people gamble, visit the bar and have stories with women but when the archbishop wants to have one-to-one talk with the Martian, latter recognizes former’s evilness and discorporates him. Eventually, the Man from Mars has learned all he can at Jubal’s and he and Jill set out for the world. They join a circus troupe where the Martian performs a levitating trick with Jill, only it is not a trick, he really does so. But they are unsuccessful, the marks see right through it. They leave again, but not before they have listened to a snake charmer sermon about the Fosterites and before they make her a water brother. They next move to Las Vegas where Jill works in a show and the Martian as croupier and they elucidate naughty pictures. Thereafter, they go to San Francisco, where the Martian reads all the books about the various religions without grokking anything. They then visit a zoo where the Martian breaks out laughing as he, observing monkeys, finally groks people. They founded their own church, but it’s not a religion. The Martian had hereto shown some extraordinary capabilities, such as being able to enter a trance state where he could stay under water for hours, telekinesis and the ability to discorporate things or beings at will. Had the reader so far been wondering how he could do that, if the Old Ones on Mars has changed him somehow on Mars, now it become clear that this was not the case. Everybody can do it but, in order to facilitate such deeds, which were connected to Martian creed, one had to understand the Martian concepts, which one could only by firstly learning the Martian language. The Martian church was thus foremost a Martian language school. That was however not all it was. The Martian idea was that there was no God than God in everyone of us. All other religions were considered as truths, only that they were kind of hiding that God was each of us, and thus the creed was “Thou are God.” In the Martian church, also free love was practiced. We get hence a chapter where Ben was shocked by this and fled the church most hurriedly to report to Jubal, only to join it again the next chapter. And of course, we get Fosterites who try to start a persecution against their competitors. The end then also makes sense, but I don’t understand why. It was on one hand logical but on the other hand why was it necessary? This is thus not really a work of science fiction and but rather a theological treatise. I think it could have shortened somehow, then realized, that what the original editors thought as well. It was my third book I read from Robert Heinlein, Starship Troopers was a good concept which Joe Haldeman made into a good book, the Moon is a harsh Mistress was a quick read that kept me hooked, but considering, it is basically a story of the American struggle for independence, just on the Moon, and it will also be my last. There are other science fictions authors out there.
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Reviewed in the United States on November 15, 2022
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b slev
Whiting, US
★★★★★ 5
seekers paradise
Format: Kindle
Some of this book disturbed me a little but overall I found it amazing and fascinating. Possibilities abound in fantasy and can be just the thing you need to open up. Enjoy! I sure did.
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Reviewed in the United States on May 22, 2026
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Jenni DaVinCat
Chelsea, US
★★★★★ 3
We Should All Be a Little Stranger.
I understand why this book is often cited as one of the most important sci-fi books of all time. While reading it, you might begin to question why it’s lumped into the sci-fi category because the themes are very human. It is science fiction, that cannot be argued, but it’s also a coming of age story, a religious story and at its very core, a story about love. Valentine Michael Smith was born and raised on Mars, but he is a human. He is brought back to Earth to learn what it means to be a human. This causes the reader to be forced to think outside of the box because Michael is not just coming from a different human culture, he has never learned what it means to be a human so any chapter told from his perspective is like an outsider, looking in on human culture. It’s wildly fascinating to think about ourselves in this manner. As Michael progresses in his grokking of humans, he gets out to explore the world and to challenge it. Our concepts of God/religion and sex/love are strange to him. We tend to not really think about it from an outside perspective because this is just the way life is, but being forced to think about it, makes for a very fascinating read. I’d never really considered myself to be a “prude” but there were times that this book made me feel that way. At times, the reader must take a step back and remember that Heinlein did intend for many of the themes to be viewed as satire of what is commonly accepted. There were a few negatives when reading this book, however. It was written in the sixties, which was a very different time from today in terms of the way women are spoken to/about and how they are treated. Heinlein wasn’t too bad in this regard, but there were a few sentences that made me stop for a second. Heinlein also has some of his characters go on these long drawn-out speech tangents that go on for pages and pages. I felt it was a little unnecessary to go on for that long, especially considered the length of the uncut version. It took me a little while to get through this book and normally I’m a pretty quick reader. Negatives aside, I do feel like this book is important. The story itself is not challenging, but as I stated before, it challenges the reader to think about humans from an outside perspective and that is fascinating. He really doesn’t seem to rely too much on Sci-fi elements, preferring to focus on the human elements of the story (love, religion etc.). If you’re looking for something long and fulfilling, this may just be the sci-fi book for you!
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Reviewed in the United States on September 29, 2016

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