Mexican Fence Post Cactus Turning Yellow

Rot proper watering is essential to the.

Mexican fence post cactus turning yellow.

The mexican fence post will eventually reach 20 feet tall and will remain as straight as it is in this photo. What is happening to my mexican fence post cactus pachycereus marginatus. An under watered cactus may also pucker or shrivel but can also discolor usually getting brown and dry or calloused. I noticed this brown spots on my cactus and i was not sure if it is some form of.

I think it s an exceptionally attractive cactus and i wish i had acquired a few more. Wikipedia commons cold temperatures mexican fencepost is frost sensitive. The mexican fence post is native to the states of hidalgo queretaro and guanajuato and is widely planted and naturalized throughout mexico. Cactus showing signs of scale insect infection source.

I recently bought these 2 cacti and placed them in the same pot. One in the cluster is turning yellow w black soft circles from the bottom to the middle. Maintenance plant the mexican fencepost in well draining soil and full sun with reflected heat or partial shade. I planted this specimen on the east side of my garden as it prefers partial shade.

I have a cluster of 3 mexican fencepost cactus that were planted in 9 09. Marginatus does not grow arms. If the cactus seems shrunken wrinkled or wilting give it water. Always use well draining cactus or succulent soil though because your plants won t want to hang out in wet soil for long.

Water sparingly in the winter as it does not grow in cold weather. Asked october 12 2016 10 28 am edt. I also noted that both these cacti where they have the yellowing or problems are are. The rest of the barrel cactus ooks fine.

It branches from the bottom. If frost is in the forecast cover the top of the cactus with an old t shirt foam cup or wash cloth. If your succulents and cacti are showing these symptoms give them a nice thorough watering. 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.

If the soil is not dry move the pot to an area where the cactus can get more sun.