Lophocereus Marginatus (Mexican Fencepost Cactus)

Lophocereus marginatus
Common Name: Mexican Fencepost Cactus

Lophocereus marginatus, commonly called the Mexican Fencepost Cactus, is a tall, elegant columnar cactus known for its clean lines, soft spines, and architectural beauty. Native to Mexico, it’s often used in landscaping as a natural, living fence due to its upright growth and minimal maintenance requirements.

The thick, ribbed columns are deep green with narrow white margins, lined with short, bristle-like spines. Over time, this cactus can grow to over 15 feet tall and will form offsets at the base, slowly developing into a striking clump or vertical wall.

☀ Light Requirements
Thrives in full sun. Outdoors, choose the brightest spot possible. Indoors, place near a south- or west-facing window to encourage upright growth and vibrant color.

💧 Watering Needs
Water deeply when the soil is fully dry. During the warm growing season, it appreciates occasional watering—but be sure not to overwater. Reduce watering significantly in winter.

🌡 Temperature Tolerance
Hardy to around 25°F in dry conditions. For colder climates or winter shipping, we recommend adding a [Heat Pack].

✨ Special Features
• Tall, Vertical Growth – Ideal for natural fencing or dramatic vertical accents
• Soft-Spined – Easier to handle than most columnar cacti
• Offsetting Habit – Slowly forms dense clumps over time

Other Common Names:
Mexican Fencepost, Organ Pipe Cactus (not to be confused with Stenocereus thurberi)

This cactus will ship bare root and will be ready to place directly in a well draining soil mix like our Custom Cactus Mix.

Photos in the listings unless otherwise specified are representative of the plant that will be sent to you.
However, Plants grow differently and each plant may vary slightly in shape, size, growth pattern, etc.
Of course, if you receive a plant that you are dissatisfied with please reach out to us. We want to make it right!

If temperatures near you are below 45℉ we highly recommend adding a Heat Pack to your order.
If temperatures where you live will be much lower than 20℉ even heat packs may not work. You may consider waiting until things warm up a bit. We know you love your plants just like we do and we wouldn't want any of them to freeze.