Cacti have always been a popular choice for succulent enthusiasts, but the Mexican fence post cactus is one of the most visually striking and unique options available. Native to Mexico and southern Arizona, this columnar cactus can be grown both indoors and outdoors with proper care. In this ultimate guide, we will explore the best ways to grow and care for Mexican fence post cactus- from potting to propagation.
Best grown Inside or Out?
The Mexican fence post cacti thrives in full sun, making it an ideal outdoor plant in regions with a mild climate. It can handle temperatures as low as 20 degrees Fahrenheit, but it should still be protected from frost. When grown indoors, it still requires plenty of bright, direct sunlight to thrive.
Best Pot for Mexican Fence Post Cactus
Choosing the right pot is essential for the happiness and survival of the Mexican fence post cactus. The pot should have adequate drainage holes to prevent water from sitting in the soil and causing root rot. Terracotta pots are a great option because they tend to provide better drainage than other materials, and the porous nature of the clay allows for water and air to move freely throughout the soil.
Soil
A well-draining soil mix is the best choice for Mexican fence post cactus. A combination of sand, perlite, peat moss, and regular potting soil in equal parts will create the perfect medium to plant your cactus in. The soil mixture should be porous enough to ensure proper drainage while still retaining enough moisture to keep the cactus happy.
Water Requirements
Overwatering is the most common mistake many gardeners make with cacti, and the Mexican fence post is no exception. Allow the soil to dry out completely between waterings, and then water deeply. Water sparingly during the winter months when the cactus is in its dormant phase. Be sure to use room temperature water to avoid shocking the roots.
Light Requirements for Fence Post Cactus
The Mexican fence post requires plenty of direct sunlight to thrive, no matter where it is housed. Outdoors, position the plant near a window that receives at least four hours of direct sunlight each day. Indoors, place the pot in a south-facing window with a blind or sheer curtain to provide filtered light during the hottest parts of the day. If you don’t have the perfect window you always use an LED grow light.
Fertilizing the Fence Post Cactus
Mexican fence post cacti is a slow grower, so it doesn’t require much fertilizer. In fact, over-fertilizing can cause problems for this species. A balanced, water-soluble fertilizer at quarter-strength that incorporates in the water supply every 4-6 weeks during its active growing season is enough to provide its required nutrients.
Propagating the Fence Post Cactus
Steps for propagation include taking a cutting from a mature plant and allowing it to callus for a few days before planting it in well-draining soil.
Happy Gardening!!
If you’re looking to add a unique and interesting cactus to your collection, the Mexican fence post cactus is an excellent choice. Its regal appearance, coupled with its relative ease of care, makes it a great option for novice and expert gardeners alike. By following the tips outlined in this ultimate guide, your Mexican fence post cactus is sure to thrive.
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