Low-maintenance houseplants with fascinating forms and sizes include cacti. Your house may get some flavor, flare, and style by using a large cactus as a statement piece. If you want to add a giant cactus to your collection of houseplants, you probably won't be able to grow one from seed since cacti are often slow-growing. Some cacti take 150 years or more to achieve maturity. A juvenile cactus may so easily outlast you before growing to the size you want. Bring a little touch of the desert into your house with these 10 huge cactus plants for an eye-catching and dramatic impression. Basic Care Unexpectedly, keeping cactus happy indoors may be challenging, particularly for people who have a tendency to 'love' their houseplants too much (we're looking at you, over-waterers!). Cacti are desert plants, so keep in mind that they can go for months (yes, months!) without water if necessary. A cactus should never be overwatered; the opposite is always true. Large cacti need a south-facing site and at least six hours of direct sunshine each day to grow inside. Cactus of the blue myrtle (Myrtillocactus geometrizans) The blue myrtle cactus (Myrtillocactus geometrizans) is a columnar, quickly-growing cactus that eventually takes on the appearance of a tree. While fully grown, it may reach heights of more than 16 feet, although when young, it is still a shrub. Make sure the blue myrtle cactus is placed in stony, well-draining soil and gets at least six hours of direct sunlight each day if it is being cultivated inside. direct sunlight When the soil is dry, use sparingly and cautiously of water. Saguaro 2. (Carnegiea gigantea) One of the species that characterizes the Sonoran desert is the columnar, tree-like saguaro cactus (Carnegiea gigantea). Despite their incredibly sluggish growth, they may reach heights of 40–60 feet in the wild. They make excellent houseplants, but if you want to grow a large cactus, you probably need to get a mature plant that hasn't been poached. direct sunlight Water: Very little water; water after the soil dries up 3. Cactus on Mexican Fence Posts (Pachycereus marginatus) The gorgeous blue-green columnar cactus known as the Mexican fence post cactus (Pachycereus marginatus) may mature to a height of 20 feet. Fortunately, this cactus species grows rather quickly, so if you want, you might start with a smaller plant and wait for it to reach a respectable size. direct sunlight Water: Very little water; water after the soil dries up Fourth: Golden Barrel Cactus (Echinocactus grusonii) The golden barrel cactus (Echinocactus grusonii), also known as the mother-in-cushion, law's matures to a height and breadth of nearly three feet. Although they won't go as tall as some of the bigger cactus growers, they will grow to astonishing proportions for barrel cacti. Finding a mature plant for sale is usually your best option since these plants grow very slowly. direct sunlight When the land is dry, little or no water should be used. Cinderella Cactus (Euphorbia ingens) Although the candelabra cactus (Euphorbia ingens), which is technically a succulent rather than a cactus, is one of the most well-known kinds of indoor cactus and should still be included. This cactus-like succulent could be the greatest option for those whose homes don't have a lot of bright, sunny windows since it thrives in brilliant indirect light. Bright reflected light to direct sunlight Water: Very little water; water after the soil dries up Prickly Pear Cactus, No. 6 (Opuntia) Some of the most common indoor cactus species are prickly pear cactus plants (Opuntia), which are often offered as little three to six-inch plants and may extend out to a width of 12 to 18 inches. To keep your prickly pear happy, like with other cactus kinds, make sure it is positioned in an area that gets at least six hours of direct sunshine daily. direct sunlight Water: Very little water; water after the soil dries up Seven. Organ Pipe Cactus (Stenocereus thurberi) The multi-limbed growth habit of the Stenocereus thurberi, often known as the organ pipe cactus, gave rise to its popular name. The green skin of organ pipe cactus has numerous ribs, and the whole stem is covered with tiny spines. They have a maximum height and width of 16 feet, although they develop extremely slowly. direct sunlight Water: Very little water; water after the soil dries up 8. Giant Cardon Cactus in Mexico (Pachycereus pringlei) The tallest cactus in the world is the Mexican gigantic cardon (Pachycereus pringlei), which can reach heights of 63 feet and a diameter of 39 inches. However, because of its distinctive look, low maintenance requirements, and often much more manageable size, this cactus is also well-liked as a houseplant. Slow-growing and needing desert-like conditions to survive, this cactus. For this cactus, choose the room with the most natural light and water it sparingly. direct sunlight Water is scarce, and is only applied when the land is dry. Mexican Lime Cactus 9. (Ferocactus pilosus) The Mexican lime cactus is another barrel cactus that may grow to astonishing sizes (Ferocactus pilosus). This cactus is distinguished by protruding ribs embellished with areoles that erupt brilliant crimson spines. The Mexican lime cactus grows very slowly, like the majority of other cacti types. Therefore, you must opt for a well-established plant if you want to add a large specimen to your house. direct sunlight Water: Very little water; water after the soil dries up A blue columnar cactus (Pilosocereus pachycladus) Most nurseries and garden stores carry this blue-skinned cactus, which is a very popular houseplant. It may reach a height of 33 feet and has delicate blue skin accented by vivid yellow spines. As it ages, it develops treelike and branching characteristics. To flourish to its best potential indoors, this fast-growing cactus type needs plenty of strong light, consistent fertilizing, and infrequent watering. Bright reflected light to direct sunlight Water: Very little water; water after the soil dries up