Cactus is one of the unique plants among indoor plants. Because of its unique charm, it has become a popular choice among indoor Gardeners. Most beneficial thing about Cactus is, it needs minimal care. Besides, it has an impressive quality that brings aesthetic appeals to your place. For decorating indoors, beside other plants you can keep cactus in your list. You’ll get different shapes and sizes of cactus that will suit indoors. You can bring a bit of the desert into your home with Cactus plants.
Why do you choose large indoor Cactus Plants?
Large indoor cactus plants aren’t visually beautiful only, these have other benefits too.
- Cactus is a very low maintenance plant and easily grows indoors.
- Like other indoor plants, Cactus is effective to remove toxins and improve indoor air quality.
- The Longevity of the Cactus is incredible. It can live for decades.
- It has Versatility, due to its different shapes and sizes, that’s why it can suit any interior design.
7 Popular Large Indoor Cactus Plants
1.Blue Myrtle Cactus:
Blue Myrtle Cactus is a fun conversation starter, also a low maintenance plant. The native land of this cactus is Mexico. It has different common names like, Blue flame cactus, Bilberry Cactus etc. Its distinctive shape and eye-catching colour make it highly sought after by plant collectors. The plant grows up to 16 feet outdoors, 2–4 feet tall indoors. The growth rate of this attractive columnar cactus is fast. The flowers of the blue myrtle cactus are small.
Care Tips:
Light: Direct sunlight is required.
Water: Water conservatively once the soil is dry.
Mature Size: 2–4 feet tall indoors
Toxicity: Generally it’s not toxic to pets and humans but sharp spines can pose a physical risk.
Unique Feature: It produces edible fruits called ‘Garambullo’ that are non toxic.
2.Mexican Fence post cactus:
The Mexican fence post cactus is familiar for its rock gardens and tropical landscape and gets its name from its similarity to fence. Its stunning blue green columnar cactus is very attractive. The plant can reach up to 20 feet outdoors and 5-7 feet indoors. This one is a fast growing plant. So you can start with a small plant. 
Care Tips:
Light: It needs bright light. So direct sunlight is preferable.
Water: Minimal water, water once the soil is dry
Mature Size: 5–7 feet indoors.
Toxicity: The plant does not have toxicity but primary concern is the spines, which can cause puncture wounds.
Unique Feature: It’s symmetrical, that’s why it’s favorite for minimalist decor.
3.Golden Barrel Cactus:
Golden Barrel Cactus would be a perfect indoor plant for its visual appearance. Its other name is Mother in laws Cushion. It grows up to 2 feet. For blooming, it needs 10 years at least. Then your plant will be blessed with a crown of yellow followers. It looks amazing when it blooms. This one also needs little effort to grow. 
Care Tips:
Light: It needs bright sunlight but it can tolerate partial light.
Water: water when the soil is dry.
Mature size: It grows up to 2 feet.
Toxicity: The plant does not have toxicity but primary concern is the spines, which can cause puncture wounds.
Unique Feature: It has Striking golden spines that catch the light beautifully.
4.Saguaro Cactus:
The saguaro Cactus is one of the most popular cacti. It is unique and for this reason it features several times in western movies. The origin of saguaro Cactus is from the state of Sonora in Mexico and areas of California and Arizona in the United states of America. This variety of cacti grows very slowly. But their longevity is incredible, they can live for 150-200 years. It has waxy skin and is covered with long spines when it matures. 
Care Tips:
Light: Being a desert cactus, it required bright sunlight.
Water: Water it when soil is dry.
Mature size: 2–5 feet.
Toxicity: Yes, it’s pet friendly.
Unique Feature: It Can live for over a century in the right conditions.
5.Euphorbia Ingen:
Euphorbia Ingen is mainly Southern Africa’s Cactus. Normally it blooms but indoors it won’t flower. But without flowers, it also looks so cool and spectacular. It increases the beauty of indoor plants and suits any interior, Especially at the corner of the room. You can grow it both indoors and outdoors. The growth is much better outdoors than indoors. Indoors, it can grow up to 8-10 feet. It blooms in fall and winter months. It looks so uncommon when the flowers bloom. By the way, the maintenance of Euphorbia Ingen is very easy. 
Care Tips:
Light: It requires Bright light. Keep the plant in a place where the sun meets.
Water: The soil should dry out completely between watering.
Mature Size: 8-10 feet indoors.
Toxicity: This plant contains toxicity that’s not friendly to humans and pets.
Unique Feature: Its distinctive candelabra-like branches make it a bold and sculptural indoor plant.
6.Prickly Pears:
Prickly Pears is another desert cacti but mostly known as a houseplant. They are most unique and look like ornaments. You’ll see the blending of large and tiny spines which look amazing. In its mature age their outsides become bright and the inside flesh turns orange. If you’re a beginner, it will be easy for you to care. beginners. Just you need to know some tips. 
Care tips:
Light: Prickly pears need direct sunlight.
Water: Water sparingly. The soil should dry out completely between watering.
Mature size: 2-4 feet indoors.
Toxicity: It’s not toxic but be careful of its spines.
Unique Feature: You’ll get vibrant flowers, edible and nutritious fruits.
7.Blue Columnar:
Blue Columnar Cactus stands out with its stunning blue green stems and columnar growth pattern. That looks spectacular and stunning indoors. You can find this variant at any nurseries and garden. The plant is slow growing, outdoors it can grow up to 33 feet tall and 3-6 feet indoors. The plant is covered by bright yellow spines. It’s also a low maintenance plant. The plant needs bright light. Using fertilization during the growing season can be fruitful and it will promote its vibrant blue hue and columnar growth.
Care Tips:
Light: In requires bright, indirect light
Water: The soil needs to be dry before watering.
Mature size: 3-6 feet tall indoors.
Toxicity: It’s not toxic to humans or pets. Many cacti, it has spines that can cause physical injury
Unique Feature: Its vibrant blue hue adds a unique and exotic touch to any indoor setting.
How to Prune large indoor cactus plants:
Sometimes the size of your large indoor cacti needs to be managed. Pruning is a good option to give a good shape to your plant. Here are some tips on what you should do for pruning.
During pruning, use Sharp and clean tools to avoid damaging the cactus or introducing infections. Choosing the Right Spot is important for pruning. That’s why Cut just above a healthy node or segment. After cutting, Let the plant heal before replanting or watering to prevent rot. The cut pieces can be propagated by planting them. So, repurpose them.
Conclusion:
You can maintain style and testament by keeping a large indoor cactus plant at the same time. They are low-maintenance and easy to care for. The above mentioned plants can bring a sense of nature’s resilience into your living spaces. They just need proper care and tips. You can follow our guidelines to grow healthy cactus plants. you can bring the charm of these hardy plants and transform your home into desert-inspired sanctuary.