When I bought them, they were both the same height. There are 1 - 4 stout central spines and 6 - 9 less stout radial spines. Blue Columnar Cactus. I’m betting that in two more years, my cardon cactus will be over 6 feet tall, while my young saguaro’s height might be only 2 or 2.5 feet. put it in the sunniest place you have and see how it goes - the stretching can't be undone but hopefully it'll grow more healthily Haworthia Cactus Zebra. How to Grow a Cactus. It is good as a fencing plant but can also be used as a potted plant. Under the right conditions, you can keep your cactus plants flowering for a long time to come. That’s why it doesn’t grow naturally in southern Arizona. A barrel cactus plant can thrive with watering as infrequently as once every two to three months. Orchid Cactus Cactus pruning is not always necessary and when to prune a cactus plant will depend upon why you are trimming it. The cactus was given to me by a neighbor who moved cross country. Cacti are wonderful, low-maintenance alternatives to standard plants. Barrel Cactus. I have a 35 year old cactus, approximately 18 inches tall. Outside these can grow to over 30 feet but obviously won’t get that tall indoors. This method of propagation will produce a healthy cactus that is the same as the parent plant. Cereus and related species are tall, often tree-like cacti, and only three are common in the Southwest: the saguaro (carnegia genus), senita (pachycereus genus) and organ pipe (stenocereus genus). 7. ... you'll often see that they are skinny and stretching for light." A soft, mushy cactus can also be saved by taking cuttings and letting them root for a fresh new plant. It might surprise you to find that cacti can and do need to be pruned now and then. Outside these can grow to over 30 feet but obviously won’t get that tall indoors. it is about 4inches in diameter. Finding the Best Cactus To Grow in the House. Although there are many varieties of tall houseplants, you need to choose one that requires low maintenance, can grow well in limited sunlight and does not require too much pruning. Bunny Ears Cactus (Opuntia microdasys) Water needs: Low. These plants may grow very tall and could be difficult to maintain because of their spines. Do you have a succulent growing tall, thin and stretched looking? Dracaena plants can grow upward of 10 feet tall in containers, and there are many varieties to choose from. They produce green or orange blooms. It might surprise you to find that cacti can and do need to be pruned now and then. … Talk about unique-looking cactus growing tall, thin and BLUE. There are 1 - 4 stout central spines and 6 - 9 less stout radial spines. Dancing bones cactus (Hatiora salicornioides), also an epiphyte and rainforest species, has long, thin stems that drape downward and grow golden or orange flowers at their tips in spring. If you want a cactus that grows slowly, you need to get a species that is slow growing. It was in a tiny pot, so I replanted it. I put it outside during summer so it blooms. Unless you can get it into full outside sun (these things suck up sun and heat) then this is the best growth you're going to get on it. Tall indoor plants can also be placed in the balcony or porch, so that you can enjoy some greenery while you sip a cup of tea.