Raising a cactus indoors can be quite challenging.
Fortunately, there are a number of cacti that grow great indoors.
Cacti are a good choice when it comes to houseplants due to their hardy nature.
There almost 2000 species of cacti according to the University of Minnesota.
In this article, I will look at the 12 best cactus for indoors.
The reason why they grow well inside will be discussed as well as some basic information about each cactus plant.
Without further ado, here are the best indoor cacti.
Table of Contents
Best Cactus for Indoors
The best cacti for indoors are:
- Burrow’s Tail cactus (Sedum morganianum)
- Bunny Ear cactus ( Opuntia microdasys)
- Blue Chalk Sticks (Senecio mandraliscae)
- Coral Cactus (Euphorbia lactea)
- Desert Candle (Euphorbia acrurensis)
- Echeveria ‘Curly Locks’
- Fishbone Cactus (Epiphyllum anguliger)
- Moon Cactus (Gymnocalycium mihanovichii)
- Old Man Cactus (Oreocereus trollii)
- Prickly Pear Cactus (Opuntia vulgaris)
- Star Cactus (Astrophytum asteria)
- The Blue Hens and Chicks (Echeveria glauca)
Growing Cati Indoors
Humidity for Cacti at home
According to the University of Vermont desert cacti are great plants to grow indoors especially when the indoor humidity is only 20-30% in the winter.
Lighting fo Cacti indoors
The best spot for a cactus that is grown at home is a south-facing window and then then an east- or west-facing window as the second and third best spot.
East- and west-facing windows get at least a couple of hours of direct sunlight and you can always supplement artifical lighting.
Temperature range for a cactus indoors
Temperatures for a cactus should be at least 70-75 degrees Fahrenheit (21-24 degrees Celsius) in spring and summer during daytime and 10-15 degrees cooler at night.
Spring and summer is also the main growth period for a cactus.
Best Cactus for Indoors
1. Burro’s Tail or Donkey’s Tail (Sedum morganianum)
Genus: Sedum
Other Names: Donkey’s Tail
• Placement: The best spot for this plant is in a hanging basket in a window that faces the south.
• Temperature: If your house sits anywhere between 10 and 16 degrees Celsius, which is about room temperature, it won’t be hard to keep this Sedum alive.
• Humidity: Not all that picky, the Burro’s Tail just asks for a spot that isn’t too humid such as the bathroom or the kitchen.
• Propagation: This plant is easy to propagate through the leaves themselves.
• Non-toxic: Having a plant that isn’t poisonous to both pets and children is a plus for most indoor houseplants
• Fragile: If you have children that may be a little too handsy when it comes to plants, the Burro’s Tail may not be the right fit.
• Black spots forming along the leaves because of the sun.
2. Bunny Ear Cactus (Opuntia microdasys)
Genus: Opuntia
Other Names: Angel’s wings, Polka-dot Cactus
• Placement: Choosing a windowsill or ledge that is south-facing will be the best move for this little cactus.
• Temperature: Even if you have a house that gets a little cold, the Bunny Ear Cactus is quite resilient to a gradual increase or decrease.
• Size: Slowly growing to be no more than 45 centimeters makes this a great candidate for a houseplant.
• Soil: A little picky about the soil that they reside in, this species needs there to be more aeration than other members of this family.
• Brown splotches along the leaves may be due to inadequate temperature.
3. Blue Chalk Sticks (Senecio mandraliscae)
Genus: Senecio
Other Names: Slender Leaf Senecio
• Humidity: Again, moisture isn’t all that important for these succulents. It can do just fine in areas with too much or too little humidity.
• Potting: The act of repotting seldom happens, making your life a lot easier when it comes to indoor plant care.
• Placement: The ideal location for your Senecio is in a room that has plenty of direct sunlight. Just be sure to give it breaks every once in a while.
• Propagation: These individuals are easy to propagate through the simple act of leaf cuttings.
• Light: Direct sunlight seems like a natural choice, however, Senecio mandraliscae can also suffer from being overexposed when in excessive heat outdoors. Place it in front of a window with plenty of sunlight such as a south-facing window.
• Stems and leaves taking on a dark brown coloration generally are signs that your plant is experiencing root rot.
4. Coral Cactus (Euphorbia lactea)
Genus: Euphorbia
Other Names: Mottled spurge, Elkhorn, Dragon bones, Candelabra spurge
• Temperature: If your house has average temperature ranges, then keeping this Euphorbia happy shouldn’t be all too difficult.
• Potting: Being quite little, the need to repot this plant is few and far between.
• Placement: Putting this plant in a spot that has access to indirect, bright sunlight and plenty of airflow makes for the happiest Coral Cactus individual.
• Water: The balance between over and under watering can be a challenging feat when it comes to this type of succulent.
• Brown patches can be due to a myriad of problems such as temperature, disease, or pests.
5. Desert Candle (Euphorbia acrurensis)
Genus: Euphorbia
Other Names: Cactus King
• Placement: Choose a windowsill that receives a good amount of bright, indirect sunlight and watch how this plant leans in the direction of the sun.
• Water: Infrequent watering is pretty common for this Euphorbia, making your life a lot easier.
• Temperature: As long as there aren’t any cold drafts, your Desert Candle should be quite happy with how warm the room is.
• Fertilizer: Less is more when it comes to these plants. If you’re unsure about how much to add, or when, you can forego giving your Desert Candle any at all.
• Sunlight: Although more is better, you can burn the leaves if you’re not careful.
• Root rot can be common for those who don’t give their Desert Candle the right soil and drainage.
6. Echeveria ‘Curly Locks’
Other Names: None
• Placement: Even though this plant is a succulent, it does not like a lot of sun. To make the most of this curly succulent, put it in a spot that has partial or light shading.
• Water: Not adding a lot of water works in favor of the Curly Lock succulent.
• Growth: Being around 12 inches tall and 10 inches wide, you won’t need to repot these individuals all that frequently.Indoor Controversies:
• Humidity: Being from the tropics, this Echeveria needs to be properly saturated either through regular misting or a humidifier.
• Potting: It’s true that you only need to repot these individuals every once in a while, though when you do, be extremely careful. The Curly Locks succulent is as fragile as it appears.
• Leaves that develop black spots are an indication of sunlight issues. It also may be a sign that your Curly Locks has developed a fungal infection.
7. Fishbone Cactus (Epiphyllum anguliger)
Genus: Epiphyllum
Other Names: Moon Cactus, Zig-Zag Cactus, Ric Rac Orchid Cactus
• Water: A useful attribute to the Fishbone Cactus is the fact that it does not need a whole lot of water.
• Temperature: The average household can happily keep this species of cactus, just as long as there are no sudden drops.
• Fertilizer: This Epiphyllum does sprout flower buds during the right seasons, and you don’t necessarily need to give additional food in order to do so. Just keep in mind that these flowers only last for a day or two at most.
• Potting: The best pots for these individuals are baskets or unglazed pots. Fortunately, you don’t need to repot these plants all that often.
• Humidity: Be mindful of how much moisture you need to add to this type of cactus.
• If you need to handle a Fishbone Cactus, do so carefully as they are quite fragile.
8. Moon Cactus (Gymnocalycium mihanovichii)
Genus: Gymnocalycium
Other Names: Ruby Ball, Red Cap, Red Hibotan, Hibotan Cactus
• Humidity: Misting and the addition of a humidifier are all that the Moon Cactus needs in order to remain happy.
• Temperature: As with most members of Cactaceae, these plants will adjust to just about any temperature range, as long as there isn’t a sudden drop.
• Potting: This Gymocalycium is smaller than most other members of cacti, meaning that you don’t need to repot as often.
• Light: One tricky aspect to the Moon Cactus is that different parts of the plant like separate intensities of sunlight. The lower half of the cactus does better when exposed to direct sunlight, while the top half prefers shade.
• Yellow, on the other hand, is either the result of overwatering or an issue with light exposure.
9. Old Man Cactus (Oreocereus trollii)
Genus: Oreocereus
Other Names: Old Man of the Andes
• Water: Forget to water your plants? That’s just fine when it comes to this plant. The Old Man of the Andes is relatively simple as far as a watering schedule goes. Just be careful not to add too much.
• Temperature: Unless there is a cold draft in your home, this species is easy to keep alive and well.
• Humidity: Some plants require additional moisture. These individuals don’t require any further misting beyond the water that you add to the soil.
• Fertilizer: The beautiful flowers that sprout in the summer months don’t need any help at all.
• Potting: Many plant owners associate the word “slow-growing” with the Old Man Cactus. Sounds quite fitting, given the name. Because of this, you don’t really have to worry too much about repotting.
• Soil: Having a soil that drains properly is a must for this cacti. Compared to other members of Cactaceae, further research must be provided before choosing the most adequate soil medium.
• The stem may turn brown and soggy if rotted through.
10. Prickly Pear Cactus (Opuntia vulgaris)
Genus: Opuntia
Other Names: Sabra, Paddle Cactus
• Easy to propagate, these individuals can be duplicated from either the seeds or the pads themselves. Most choose to propagate through the seeds.
• Water: On par with most members of Cactaceae, you shouldn’t have to worry about not adding enough water. Instead, focus on how adequately the water can be drained out the bottom.
• Overwatering is quite common for the Prickly Pear Cactus. Be mindful of how much water you’re adding and let the plant dry out between sessions.
• Fungal diseases can quickly infect and kill members of Cactaceae if not treated properly. Look for black splotches as a precursor.
11. Star Cactus (Astrophytum asteria)
Genus: Astrophytum
Other Names: Sand Dollar Cactus, Sea Urchin Cactus
• Soil: The average soil mix should be more than enough for this cactus.
• Fertilizer: Are you unsure about the act of fertilizing your plants? Then don’t worry about it. The Star Cactus doesn’t really need this step in order to survive.
• Propagation: If you want to go ahead and make new plants from the old, then propagating through seedlings is the way to go. Fortunately, this is one of the easiest ways in which to do so.
• Temperature: Relatively average in their temperature requests, the Star Cactus can withstand lower temperatures when compared to other members of Cactaceae.
• Direct sunlight is a must for the Star Cactus. If you don’t have an adequate place with these requirements met, consider buying an indoor LED plant light.
• If you notice small white fuzz coating the main body of this species, be on the lookout for mealybugs.
12. The Blue Hens and Chicks (Echeveria glauca)
Genus: Echeveria
Other Names: Old Hens and Chicks
• Temperature: This species of cactus can survive a larger of temperatures than most, making them ideal for a home setting.
• Placement: Those who want a petite plant to sit in the windowsill that gets a lot of sun can rely on this Echeveria.
• Propagation: Making a new individual from the old is easy through the act of leaf cuttings.
• Fertilizer: Adding food, even during the growing season, is not needed or recommended.
• Soil: The pH level and soil type are important considerations to make before taking care of a Blue Hen Cactus.
Afterword Best Cactus for Indoors
A Cactus was the first plant I owned as a child and also my first indoor plant.
Cacti are forgiving and well suited for keeping in your home as long as you provide sufficient light.
Bright direct or at least indirect light is needed. Otherwise cacti become leggy and are no fun anymore.
The biggest advantage of an indoor cactus is that you can go on holidays and when you come back your plant is still alive.
This is not true for most houseplants.
The biggest mistake I have seen others and myself included make is to water too much.
With the 12 indoor cacti listed I am sure you will find the perfect cactus for your home.
Daniel has been a plant enthusiast for over 20 years. He owns hundreds of houseplants and prepares for the chili growing seasons yearly with great anticipation. His favorite plants are plant species in the Araceae family, such as Monstera, Philodendron, and Anthurium. He also loves gardening and is growing hot peppers, tomatoes, and many more vegetables.