Plant FAQs: Cactus

S7c3bf68ac9b3413792f68c5e201b1bc5d | Monsteraholic

Top 100 Gift Ideas For Plant Lovers 2024

Can dogs eat cactus?

You wouldn’t believe the scare I got the other day! Sparky, my goofy Labrador, was sniffing around the desert patch in our backyard when I heard a yelp. There he was, nose nudged into a prickly pear cactus, looking sheepish with a spine stuck right on his tongue. Thankfully, the vet said it was a common thing for curious pups like Sparky. They assured me most cactus flesh isn’t poisonous, but the spines can definitely do some damage. Needless to say, I got rid of that cactus ASAP! Now Sparky sticks to sniffing the roses… most of the time.

How to remove cactus needles?

Ugh, don’t ask me about cactus needles! I swear those things are out to get me. Last summer, I went camping in the desert, and let’s just say a close encounter with a jumping cholla didn’t end well for me. Those tiny barbed needles clung to everything! Tweezers work for the big ones, but those tiny, nearly-invisible glochids were the worst. After trying duct tape and even Elmer’s glue (don’t judge!), I found a fine-tooth comb was surprisingly effective. Still, it took forever, and even now I swear I occasionally feel that phantom prickle. Ugh, lesson learned: give cacti a wide berth!

Cactus | Monsteraholic

Is cactus a vegetable?

I used to think of cactus as something only cartoon characters munched on, but then I moved to Arizona! Here, they treat those prickly pear pads, called nopales, like any other vegetable. You’ll see them at farmer’s markets and even in tacos at restaurants. I’m still working up the courage to try them myself – I hear the texture is a bit like okra, which isn’t exactly my favorite. But who knows, maybe I’ll find myself a nopales convert! It’s pretty amazing that something so spiky can be a tasty and nutritious food.

Why is my cactus turning yellow?

Oh no, not a yellowing cactus! That prickly little friend of mine is probably throwing a tantrum about something. It could be a watering issue. I tend to forget about these guys sometimes, and before I know it, their plump stems are starting to wrinkle and turn yellow. On the other hand, I’ve also drowned one with too much love (oops!). Maybe sticking my finger in the soil to check for moisture before watering would be a good idea… Then again, maybe it’s not getting enough sun. My living room isn’t exactly a desert, and some cacti need tons of bright light to stay happy. Back to the drawing board to figure out what’s ailing my prickly pal!

Are all succulents cactus?

Nope, I used to think that too! I pictured all succulents with spines and living in the harsh desert, but that’s just not the case. While cacti are definitely a type of succulent, there’s a whole world of other succulents out there. They come in all shapes, sizes, and colors – from the spiky aloe vera to the smooth, plump jade plant. There are ones that look like little green dolphins or trailing strings of pearls – it blows my mind how diverse they can be! Cacti certainly have their unique adaptations, but they’re just one fascinating branch on the huge succulent family tree.

What animals eat cactus?

It always amazes me to think about the animals that find prickly cacti absolutely delicious! When I was hiking in New Mexico, I saw signs warning about javelinas – those wild, pig-like creatures munch on cacti like they’re candy. Apparently, they’re experts at chomping around the spines or even burning them off with their tough mouths. I also remember seeing those adorable desert tortoises nibbling on prickly pear pads – it’s like they have built-in armor! And have you ever seen a packrat nest? They build their homes out of cactus pieces, using the spines for protection. Talk about resourceful!

How long can a cactus live?

The lifespan of a cactus totally blew my mind when I found out! I always thought of them as hardy desert dwellers that could tough it out for a few years. But some of those giants, like the saguaro, can live for centuries! It’s humbling to think of a cactus out there that’s seen more history than I can even imagine. On the other hand, some smaller ones have surprisingly short lives. I had a cute little pincushion cactus that didn’t make it much past year three, and those beautiful Christmas cacti live much less than a century. It just goes to show, you can’t judge a book (or a cactus!) by its cover.

Do cactus need direct sunlight?

Most of the time, yes! Think about where cacti naturally grow – those bright, open deserts. These guys are built for sunshine. I have a few on my windowsill that absolutely love soaking up those rays all day long. They get plump and vibrant, and some even reward me with beautiful blooms. However, I’ve learned about a few exceptions, like the Christmas cactus. They like bright light, but too much direct sun can actually scorch their delicate leaves. It’s a good reminder that even among cacti, there’s variation, and it’s always worth checking the specific needs of the type you have!

How long can a cactus go without water?

The sheer toughness of cacti never ceases to amaze me! Last year, I totally forgot about this little potted cactus on my porch. It must have gone weeks without a single drop of water in the blazing summer sun. I was ready to toss it, assuming it was a goner, when I saw a tiny flicker of green. I watered that resilient little guy and it bounced right back! Cacti are experts at storing water for long periods, so they can handle some neglect. Obviously, I try not to push my luck – these plants still thrive best with regular watering – but they definitely teach me about the power of adaptation.

Is it cactuses or cacti?

Ah, the eternal question! Turns out, both “cacti” and “cactuses” are considered correct. “Cacti” is the traditional Latin plural, reflecting the origins of the word. A lot of sticklers for grammar rules insist that’s the only correct form. However, over time, English speakers adopted “cactuses” as well, just like any other regular plural. Most dictionaries list both as acceptable, though maybe for a formal scientific paper, I’d play it safe with “cacti”. But in casual conversation? I feel like either flies!

What does a cactus symbolize?

Cacti hold something special for me. They symbolize resilience, the ability to not just survive but to thrive even in the harshest conditions. That’s the thing about those prickly guys – they may look intimidating on the outside, but they adapt and find ways to flourish in environments most other plants couldn’t. To me, it’s a reminder that sometimes under a tough exterior lies strength and unsuspected beauty. They also kind of symbolize the desert Southwest, where I live. It’s a place of rugged beauty, and cacti are such an iconic part of that landscape.

When do cactus bloom?

Cactus blooms are one of the most spectacular surprises in nature! While a lot of cacti bloom in the warmer months, like spring or summer, it really depends on the species. Some, like the iconic saguaro, put on a magnificent display of white flowers for just a few short weeks. Others, like my beloved Christmas cactus, break the winter dullness with bursts of pink, red, or white. I’ve even seen night-blooming varieties that only unveil their dazzling flowers under the cover of darkness. The best way to know when your specific cactus blooms is to do some research about it – finding out was half the fun for me!

How to save a rotting cactus?

Ugh, cactus rot is such a bummer! Here’s my general approach, based on a few unfortunate experiences of my own:

  1. Immediate Action: Rot often means your cactus is overwatered or in soil that doesn’t drain well. Stop watering immediately and take it out of its pot to inspect the damage.
  2. Cut the Rot: Get a sterilized knife or scissors. Anything mushy, black, or discolored needs to go. Keep cutting until you see firm, healthy green tissue.
  3. Let it Dry: The cut section needs to callous over to prevent further rotting. Leave your cactus bare-root in a dry, airy spot for several days, even up to a week. Do this away from direct sunlight to avoid adding stress.
  4. Repot & Watch: Get a new pot and well-draining cactus soil mix. Discard the old stuff! Repot your dried-out cactus. Don’t water immediately! Wait about a week to let things settle, then water lightly and cautiously, watching for any new signs of rot.

Important Notes:

  • Severe Rot: If the rot is extensive, reaching the core of the cactus, it might be too late to save it
  • Prevention: Focus on watering only when the soil thoroughly dries out and ensuring excellent drainage.
  • Fungicides: During the drying phase, you might dust the cut end with a fungicide as a precaution, but it’s not always necessary.

It’s a bit of a gamble, but sometimes you can save these tough plants with a little TLC and a good amputation!

Is tequila made from cactus?

You wouldn’t believe the misconception I used to have! I always thought tequila came from some desert cactus. Turns out, while it looks like a spiky desert plant, the agave plant used for tequila isn’t technically a cactus. It’s actually a succulent related to lilies! They do both store water and thrive in the harsh sun, so it’s an easy mistake to make. The heart of the agave, called the piña, is what’s used to make tequila. I’m still learning about all the different types of tequila, but it’s a fascinating process!

What does cactus mean sexually?

Cactus doesn’t have a widely accepted sexual meaning, but there are a couple of ways it can be used.

  • Innuendo: Due to the vague resemblance between a cactus and a certain body part, the cactus emoji (🌵) can be used suggestively in online chat or texting. It’s a more playful and less explicit way to hint at something sexual.
  • Slang: Urban Dictionary mentionsslang uses of “cactus” to refer to someone who is prickly or difficult to approach romantically or sexually.

However, these uses are not common knowledge and can be misunderstood. It’s best to avoid using “cactus” with a sexual meaning unless you’re absolutely certain the other person will understand your intent.

What is cactus soil?

Cactus soil is like the perfect desert oasis tailored for your prickly friends! Here’s why it’s different from your regular potting mix:

  • Drainage, Drainage, Drainage! Cacti hate soggy roots, so cactus soil is designed for super fast drainage. It has lots of gritty ingredients like sand, pumice, perlite, or small pebbles. This lets water flow through quickly and prevents root rot.
  • Less Organic Matter: Regular potting soil is rich in things like peat moss and compost. Cacti don’t need (or want) that much richness – they prefer leaner, more mineral-based soil.
  • Touch of Acidity: Some cacti slightly prefer a more acidic soil than other houseplants. Sometimes a bit of peat moss is included in cactus soil for this reason.

You can do it two ways:

  • Buy Pre-Made: Garden centers usually have bags of pre-mixed “cactus and succulent soil” that take the guesswork out of it.
  • DIY Mix: Many recipes online exist for making your own cactus soil. A common combination is roughly equal measures of potting mix, coarse sand, and perlite or pumice.

Why can camels eat cactus?

Camels munching on prickly cacti without a care is one of the coolest things about them! Here’s how they manage such a thorny feast:

  • Thick, Leathery Mouth: The inside of a camel’s mouth is covered in tough, thick skin and fleshy bumps called papillae. This gives them a super sturdy lining, protecting them from sharp thorns.
  • Chewing Technique: Camels have a unique way of chewing. They can move their jaws sideways, grinding the cactus and minimizing pokes.
  • Saliva Power: Camels produce tons of thick saliva when chewing on something prickly. This helps soften the cactus and coats those spines for easier swallowing.
  • Resilient Stomach: Even if a few spines make it past their mouths, camels have a tough digestive system that can handle it.

It’s incredible how their whole bodies are adapted to life in the desert! They can make a meal out of something most other animals wouldn’t even dare to touch.

Why is my cactus squishy?

Oh no, a squishy cactus is usually a sign of trouble! Here are the most common culprits:

  1. Overwatering & Rot: This is the number one reason. Cacti are meant to store water, but too much leads to rot. The roots die and the plant starts to become mushy from the bottom up. To check, take it out of its pot and see if the roots are brown and mushy.
  2. Underwatering: While counterintuitive, it’s possible! A severely dehydrated cactus will start using its stored water, becoming squishy and wrinkly. Stick your finger deep into the soil. Bone dry? Time to water deeply!
  3. Pests or Disease: Less common, but certain insects or fungal diseases can cause the inside of a cactus to weaken and become mushy. Look for signs of infestation or discoloration.

What to do:

  • Overwatered: See my guide about saving a rotting cactus. This involves cutting off the rotten parts and possibly repotting. ([Insert “How to save a rotting cactus?” question link])
  • Underwatered: Give it a good, thorough soak and allow the soil to dry out completely between waterings in the future.
  • Pests/Disease: Identifying the specific problem is key. Research common cactus diseases and pests to help figure it out, and consider treatment options.

Can cactus survive the winter?

Yes, many cacti are surprisingly hardy and can absolutely survive the winter! Here’s why:

  • Desert Adaptations: Cacti evolved in harsh environments, with features designed to handle extreme temperatures. Some can handle freezing temperatures and even snow!
  • Species: The key is knowing what kind of cactus you have. Some, like the prickly pear, are incredibly cold-hardy. Others, mostly tropical varieties, need protection from cold weather.
  • Outdoor vs. Indoor: If your cactus lives outdoors, its native habitat matters. A cactus naturally found in the desert Southwest will be way more winter-tolerant than one native to the rainforest. Indoor cacti are usually more delicate.

Here’s what to do for a winter-hardy cactus:

  • Dryness: The most important thing is preventing too much moisture. Cacti in wet, frozen soil are more likely to rot. Stop watering them in late fall if they live outside.
  • Sun & Protection: A sunny spot can actually help them in the winter. If harsh winds are an issue, provide a bit of shelter, like burlap, but don’t completely cover them.

If you’re unsure about your specific cactus or experience a very cold winter, you can always bring it indoors for the season. Just make sure to gradually acclimate it back to outdoor life when spring arrives!

How to graft cactus?

Grafting cacti is a fascinating way to combine different varieties or give a struggling cactus a new lease on life! Here’s a simplified guide:


  • Rootstock cactus: This will be the base of the plant. Choose a healthy, sturdy species.
  • Scion cactus: The part you’ll be grafting onto the rootstock. Interesting colors, shapes, or blooms make good candidates.
  • Sharp, sterilized knife: A clean cut is key for successful healing.
  • Rubber bands or string
  • Well-draining cactus soil
  • Pot with drainage holes


  1. Prep the Rootstock: Cut cleanly across the top of your rootstock cactus. The height depends on the desired look.
  2. Prep the Scion: Cut off the base of your scion cactus, making a cut that mirrors the shape of the rootstock cut.
  3. Join the Pieces: Carefully align the freshly cut surfaces of the rootstock and scion. The vascular rings (circles in the center) should line up for the best chance of successful grafting.
  4. Secure: Use rubber bands or string to hold the scion and rootstock firmly together, without crushing them.
  5. Aftercare: Place the grafted cactus in a bright spot but avoid direct sun for a week or two. Don’t water immediately! Wait about a week, then water sparingly.
  6. Signs of Success: In several weeks, you’ll know if the graft was successful. The scion should remain healthy, and you might even see signs of new growth!


  • Compatibility matters! Grafting is usually most successful between cacti of the same genus.
  • Sterilize your knife between cuts to prevent contamination.
  • Smaller scions can be more challenging to graft.

Extra Resources:

  • There are many video tutorials on YouTube that can show you the process visually. Search “how to graft cactus” for some great examples.

What do cactus seeds look like?

Cactus seeds come in surprising variety! Here’s a general idea of what they can look like, but keep in mind, the specific species plays a big role:

  • Size: They can be tiny little specks, while others are the size of a pea, or even bigger!
  • Shape: Some are round, others more oval or oblong. Some can even be flat or kidney-shaped.
  • Color: You’ll see a range from black, dark brown, to tan or reddish.
  • Texture: Some are smooth, while others have a bumpy, pitted, or even wrinkled surface.
  • Other features: Sometimes cactus seeds have tiny hairs or fluff. The fruit they come in can also give clues – fleshy, juicy, or dry all influence the seed’s appearance.

What is cactus leather?

Cactus leather is a fascinating innovation in sustainable fashion! Here’s the breakdown:

What it is:

  • Plant-Based Alternative: It’s a material made from the leaves of the prickly pear cactus (also known as Nopal), providing a vegan and cruelty-free alternative to traditional animal leather.
  • Sustainable Production: Cactus leather requires significantly less water and land than raising livestock for leather. It also avoids the harsh chemicals commonly used in tanning animal hides.
  • Leather-Like Properties: Depending on how it’s processed, cactus leather can have a texture and appearance surprisingly close to real leather. It’s flexible, durable, and can be used for bags, shoes, clothes, and even car upholstery.

How it’s made (simplified):

  1. Harvesting: Mature leaves of the prickly pear cactus are carefully harvested without harming the plant.
  2. Processing: The leaves are cleaned and mashed into a pulp.
  3. Mixing: This pulp is often mixed with natural resins and oils to create a workable material.
  4. Drying & Shaping: The mixture is spread thinly and dried under controlled conditions, allowing it to cure into a sheet of leather-like material.
  5. Finishing: The cactus leather can be dyed, embossed, or finished in various ways to achieve the desired look and feel.

Companies like Desserto are leading the way in cactus leather production. While still in its relatively early stages, it has the potential to be a significant game-changer in the fashion industry!

Why is my cactus turning white?

A white discoloration on your cactus can have a couple of different explanations, depending on where it’s showing up and what it looks like. Here are the two most common culprits:

  1. Sunburn: If the white patch is on the side of your cactus that gets the most direct sun, especially if it’s also slightly crispy or dry to the touch, sunburn is a likely culprit. Cacti enjoy sunshine, but too much, particularly during the harsh afternoon sun, can bleach or burn their flesh.
  2. Corking: This is a natural aging process for some cacti, especially as they mature at the base. The affected area will turn white, brown, or grayish, and become hard and woody. It’s essentially the cactus growing a thicker, more protective outer layer.

Here’s how to tell the difference:

  • Sunburn: The white patch will likely be soft or slightly sunken, and possibly dry and crispy.
  • Corking: The white area will be firm and hard to the touch, and typically starts at the base of the cactus and progresses upwards slowly over time.

How to handle it:

  • Sunburn: If you think your cactus has sunburn, move it to a location with brighter, indirect sunlight instead of harsh direct sun. You can also rotate your cactus occasionally so all sides get equal light exposure. Avoid moving a sunburned cactus straight back into full sun as it needs time to recover. In severe cases, the burned area may scar, but the cactus should still survive.
  • Corking: This is a natural process and doesn’t require any intervention. It’s actually a sign of a healthy, maturing cactus.

If the white patch on your cactus doesn’t fit the description of either sunburn or corking, it’s a good idea to take a picture and consult a gardening expert or search online for cacti with similar discoloration to get a more specific diagnosis.

Can cactus and succulents be planted together?

Yes, cacti and succulents can absolutely be planted together! In fact, creating a mixed arrangement can be visually stunning and beneficial for your plants. Here’s why it works:

Similar Needs:

  • Light: Most cacti and succulents love bright light. They thrive in sunny windows or outdoors in spots that receive plenty of sunshine.
  • Soil: Both prefer well-draining soil mixes designed for cacti and succulents. This ensures good drainage and prevents problems like root rot.
  • Watering: Cacti and succulents are adapted to dry conditions and require infrequent watering. You can let the soil dry out completely between waterings for most varieties.

Design Harmony:

  • Texture: Combining the spikiness of cacti with the smooth, fleshy leaves of succulents creates a visually appealing contrast.
  • Forms: Mix tall, upright cacti with low-growing, trailing succulents for a captivating composition.
  • Colors: Choose cacti and succulents with complementary or contrasting colors for a striking display.

Things to consider:

  • Growth Rate: Pair plants with relatively similar growth rates. Otherwise, a fast grower might overshadow slower companions.
  • Dormancy periods: Not all succulents go dormant in the winter. Consider grouping together those with similar dormancy periods to ensure the watering routine remains consistent for all.

Overall, combining cacti and succulents provides endless opportunities for creative displays. Do some research about your specific species to ensure their needs align, and have fun designing your own mini desert scene!

How to make cactus juice?

Here’s a basic guide on making cactus juice, focusing on the edible prickly pear cactus fruit (also called nopales tuna):

Safety First:

  • Wear thick gloves when harvesting and handling prickly pear, as they are covered in tiny, irritating spines called glochids.
  • Some people find removing their skin helps reduce any reaction to the glochids. Peeling is optional, but it might make the juice less slimy.


  • Prickly pear fruits (nopales tunas)
  • Water
  • Sweetener (optional, to taste) – honey, agave, or sugar
  • Lime or lemon juice (optional, for a citrusy kick)


  1. Harvest & Clean: Using tongs, carefully pick ripe prickly pear fruits that are a deep magenta color. Gently rinse them to remove residue and then carefully remove all the thorns and glochids. There are different techniques online for this, like rubbing with a brush or briefly passing them over a flame.
  2. Blend: Cut the cleaned prickly pears into chunks and place in a blender with some water. The ratio of water depends on how thick you want your juice. Start with a little and add more as needed.
  3. Strain: Pour the blended mixture through a fine-mesh sieve or cheesecloth. This is vital to remove the seeds and any remaining glochids.
  4. Flavor & Sweeten: Add a squeeze of lime or lemon juice for extra brightness (optional). Sweeten to your liking if desired.
  5. Chill & Enjoy: Serve your fresh prickly pear juice over ice for a refreshing drink.


  • Other Flavors: Get creative! Blend in other fruits like pineapple, oranges, or berries for delicious variations.
  • For Nopales Juice: Use the young pads of the prickly pear cactus instead of the fruits. They have a tart, green bean-like flavor. Remember to remove the spines thoroughly before blending.
  • Caution: Prickly pear juice can be slightly slimy due to its natural mucilage. Diluting it or peeling the fruits beforehand can help reduce this.

Enjoy your homemade cactus juice!

Will bleach kill cactus?

Bleach is definitely not a friend to cacti. While a very diluted solution might not be fatal instantly, it’s not recommended for a few reasons:

  • Disrupts Growth: Bleach can harm the delicate root system and mess with a cactus’s ability to absorb nutrients.
  • Burns Spines: The harsh chemicals in bleach can bleach and weaken the cactus’s spines, making them less effective for protection.
  • Soil Impact: Bleach can alter the pH level of the soil, making it less suitable for the cactus to thrive.

If you’re dealing with a fungal disease on your cactus, there are safer solutions available like fungicides specifically formulated for cacti and succulents. These target the problem without harming the cactus itself.

For sterilizing pots before planting a new cactus, a diluted solution of hydrogen peroxide (3%) is a safer alternative to bleach.

Overall, it’s best to avoid bleach around your cacti. When in doubt, there are cactus-friendly options available!

Can dogs eat cactus fruit?

Yes, certain cactus fruits are safe for dogs to eat in moderation, specifically the fruit of the prickly pear cactus, often called nopales or tuna. Here’s the breakdown:


  • Prickly Pear Fruit: The fleshy, brightly colored fruits of the prickly pear are non-toxic to dogs. They even contain some vitamins and fiber that could be beneficial in small quantities.

Important Considerations:

  • Thorns & Glochids: The main danger is not the fruit itself, but the nasty spines and tiny, hair-like glochids covering both the pads and the fruit of the cactus. These can cause serious irritation and even injuries to a dog’s mouth and digestive system. Only serve the peeled and thoroughly de-thorned fruit.
  • Moderation is Key: Like any new food, introduce prickly pear fruit to your dog in small amounts. Too much can cause digestive upset.
  • Not All Cactus Fruits: Only prickly pear fruit is considered dog safe. Fruits of other cacti species may be toxic.

If you decide to give your dog a taste of prickly pear fruit, be sure to:

  • Choose ripe fruits: Ripe fruits are sweeter and less likely to cause stomach upset.
  • Prepare carefully: Remove ALL spines and glochids. Cut the fruit into small pieces for easy digestion.
  • Start with a small amount: Offer just a bite or two initially to see how your dog reacts.

As always, consult your veterinarian if you’re unsure whether a new food is safe for your dog, especially if they have underlying health conditions.

Scroll to Top