San Pedro Cactus Growth Rate – Important Info

San Pedro Cactus Growth Rate – Important Info

The San Pedro cactus growth rate is one of the rarest in the world of cactus because it is not affected by either cold or hot weather. Trichocereus Panachoi as its best known is the most popular cactus in desert gardening. It gets this name from a hairy floral tube.

This magical plant hails from South American countries of Argentina, Ecuador, Chile, Peru, and Bolivia but grows in other parts of the world. This impressive cactus is fast-growing and can be grown up to 3m in height.

San Pedro Cactus is ornamental and has been used for thousands of years as a traditional medicine in South America. That’s why it comes as no surprise when it is given over 25 different names.

Growing San Pedro Cacti

Growing this cactus is easy because it is quite forgiving. It also requires only small amounts of water and nutrients. These plants are not damaged by the cold weather as long as the temperatures do not drop below -9 degrees. This means you can comfortably grow your cactus outdoors if you live in areas that do not go below this temperature.

Cactus requires a lot of natural light and nutrient-rich soil than the regular cacti soil mix. If you plan to grow this cactus in a pot, you may feed the soil with nutrients before planting.

These cacti do not need a lot of water to grow healthy but like other plants, they need care, love, and attention. When you choose to grow it indoors, place it next to a well-lit window and water it more often especially during summer days.

The San Pedro Cactus Growth Rate Defined

The San Pedro cactus grows very fast especially if the climate is friendly. If they are planted in good soil and watered more often during the summer season, they will thrive. Established San Pedro cactus plants can grow up to 30 cm in a year.

Even with the fast growth rate, this cactus is susceptible to fungal infections like the witches broom disease and orange rot. This occurs when they are overwatered. If you suspect your cactus has caught the fungal infection; remove all the affected parts using a clean knife. If the cactus has too many lesions, then it is better you take a few healthy cuttings and grow it afresh.

You can prevent these fungal infections by planting in well-drained soils and watering it with adequate water. Also, allow the plant to get plenty of heat.

Common pests that affect this plant causing its growth rate to slow down are the spider mites and root mealybugs. These pests can be easily removed by using neem oil or scrubbed off the plant if not severely affected.

Watering Trichocereus Pachanoi

The San Pedro Cacti prefers a dry environment like most cacti. Cacti are generally sensitive to watering. This is the number one cause of death in cactus.

Watering Trichocereus Pachanoi

When grown outdoors, they will need adequate water in summer and minimal water in the cold months. Cold weather prevents the water from evaporating and your cacti can sit in damp soil for too long. This promotes rot that leads to death. This should be avoided at all costs.

Do not forget to add some nutrients from time to time. The NPK is an ideal fertilizer for cacti.

Propagating San Pedro Cactus

Having seen the San Pedro cactus growth rate is fast lets us learn how to propagate it. You can grow cacti from its offsets that are at the base of a mature plant. Here are steps to prepare the new plants:
  • Remove these offsets properly, make a clear cut with a clean, sharp knife. Be sure to cut as close to the stem as possible.
  • Place these fresh-cut offsets on a piece of clean paper and allow it to dry a little.
  • Cut the offset at the narrowest space possible and let it callous for a few days
  • Once it is calloused, place it in a container that has drainage holes and some well-drained soil.
  • Any time you plan to repot San Pedro Cactus, make sure it is during the warm season. Before you repot ensure the following is in place:
  • The soil should be dry to prevent damaging the roots
  • Remove as much soil as possible to remove any rotten or dead roots
  • Look out for pests and diseases and treat them with a fungicide
  • Put the plant in its new pot or container and spread the roots as much as you can while adding fresh soil.
  • Allow the plant to rest for a few days before you can start watering. Start watering lightly until the plant adjusts to its new environment.
  • Remember to wear your gardening gloves when handling this cactus because it has some stiff spines.


Growing San Pedro Cactus is fun and rewarding because it grows faster than other cacti. They also produce beautiful flowers and edible fruit. Go ahead and grow your own!