Cereus tetragonus, also known as the fairy tale cactus or the swordfish cactus, is a unique and striking cactus that is native to the Caribbean and tropical regions of South America. This cactus is known for its tall, columnar shape and its ability to produce a plethora of delicate, rare white flowers. In this article, we will discuss how large fairy tale cacti grow, how often to water them, and how to take care of them.
How large do they grow?
Fairy tale cacti can grow up to 6 feet tall, although they can reach up to 10 feet. The stem of the fairy tale cactus is typically green or bluish-green in color and is covered in 3 to 5 ridges. The ridges have a slightly angular shape, which gives the stem a unique, geometric appearance.
How often should you water fairy tale cacti?
Cereus tetragonus are drought-tolerant and can survive for long periods without water. However, it is still important to water them occasionally to keep them healthy. During the growing season (spring and summer), fairy tale cacti should be watered once a week.
During the dormant season (fall and winter), they should be watered once every 3 to 4 weeks. When watering, it is important to avoid getting water on the stem of the cactus, as this can cause rot.
Growing & Care
In addition to watering, there are a few other things you can do to ensure the health and well-being of your fairy tale cactus. First, make sure it is planted in well-draining soil, as these cacti are susceptible to root rot. You should also fertilize your fairy tale cactus once a month during the growing season using a balanced, water-soluble cactus fertilizer.
Finally, Cereus tetragonus are susceptible to sunburn, so it is important to protect them from direct sunlight during the hottest parts of the day. If your cactus is getting too much direct sunlight, you may notice brown or yellow spots on the stem.
Fairy tale cactus flowering
The fairy tale cactus is known for its delicate, white flowers that bloom at night. These flowers are around 3-4 inches in length and have numerous petals arranged in a star shape. The flowers are typically fragrant and attract night-flying insects such as moths for pollination.
The flowering cycle of the Cereus tetragonus varies, but they typically bloom in the late spring or early summer, and the blooming period may last for several weeks. However, the exact timing of flowering may also depend on environmental conditions such as light and temperature.
After the flowering period, the fairy tale cactus may produce edible red or yellow fruits that are sometimes used in cooking or for making drinks.
Fairy tale cacti are a unique and beautiful addition to any cactus collection. These cacti can grow quite large, so it is important to have ample space for them. They are also drought-tolerant and require relatively little maintenance, making them a great choice for busy plant owners. By following the tips outlined in this article, you can help your fairy tale cactus thrive and produce its delicate, white flowers for years to come.