Mexican Fence Post Cactus Turning Yellow

Rot proper watering is essential to the.

Mexican fence post cactus turning yellow.

The mexican fence post is native to the states of hidalgo queretaro and guanajuato and is widely planted and naturalized throughout mexico. Maintenance plant the mexican fencepost in well draining soil and full sun with reflected heat or partial shade. Water sparingly in the winter as it does not grow in cold weather. I noticed this brown spots on my cactus and i was not sure if it is some form of.

An under watered cactus may also pucker or shrivel but can also discolor usually getting brown and dry or calloused. 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. I also noted that both these cacti where they have the yellowing or problems are are. Wikipedia commons cold temperatures mexican fencepost is frost sensitive.

The yellowing of this mexican fence post cactus might be mitigated with a reduction in watering. I have a cluster of 3 mexican fencepost cactus that were planted in 9 09. I think it s an exceptionally attractive cactus and i wish i had acquired a few more. If the cactus seems shrunken wrinkled or wilting give it water.

One in the cluster is turning yellow w black soft circles from the bottom to the middle. The mexican post is turning yellow on one side and the barrel cactus has lines on one area. If your succulents and cacti are showing these symptoms give them a nice thorough watering. What is happening to my mexican fence post cactus pachycereus marginatus.

Cactus showing signs of scale insect infection source. It branches from the bottom. The mexican fence post will eventually reach 20 feet tall and will remain as straight as it is in this photo. I planted this specimen on the east side of my garden as it prefers partial shade.

Asked october 12 2016 10 28 am edt. If the soil is not dry move the pot to an area where the cactus can get more sun. I recently bought these 2 cacti and placed them in the same pot. Always use well draining cactus or succulent soil though because your plants won t want to hang out in wet soil for long.

Marginatus does not grow arms.