Mexican Fence Post Cactus Turning Yellow

If the cactus is turning yellow or brown it is getting too much sunlight and you should move it into a spot with better shade.

Mexican fence post cactus turning yellow.

One in the cluster is turning yellow w black soft circles from the bottom to the middle. If frost is in the forecast cover the top of the cactus with an old t shirt foam cup or wash cloth. What is happening to my mexican fence post cactus pachycereus marginatus. If the soil is not dry move the pot to an area where the cactus can get more sun.

The mexican fence post will eventually reach 20 feet tall and will remain as straight as it is in this photo. The mexican fence post is native to the states of hidalgo queretaro and guanajuato and is widely planted and naturalized throughout mexico. Asked october 12 2016 10 28 am edt. Rot proper watering is essential to the.

Wikipedia commons cold temperatures mexican fencepost is frost sensitive. I also noted that both these cacti where they have the yellowing or problems are are. Marginatus does not grow arms. I have a cluster of 3 mexican fencepost cactus that were planted in 9 09.

The yellowing of this mexican fence post cactus might be mitigated with a reduction in watering. Courtesy of sandra chester tomatoes and many other plants produce more flowers than they can set. Cactus showing signs of scale insect infection source. Always use well draining cactus or succulent soil though because your plants won t want to hang out in wet soil for long.

The mexican post is turning yellow on one side and the barrel cactus has lines on one area. If the cactus seems shrunken wrinkled or wilting give it water. It branches from the bottom. If your succulents and cacti are showing these symptoms give them a nice thorough watering.

I recently bought these 2 cacti and placed them in the same pot. I noticed this brown spots on my cactus and i was not sure if it is some form of. Water sparingly in the winter as it does not grow in cold weather. The rest of the barrel cactus ooks fine.

An under watered cactus may also pucker or shrivel but can also discolor usually getting brown and dry or calloused.