I am a subcriber to your newsletter and was refferred to you by a friend. She told me that if I email you a photo of a plant, that you would be able to identify it. Can you please help me identify this cactus and Please tell me what I need to do to make it green and healthy as it has been showing clorosis (yellowing) for sometime now. I rescued it off the street corner as someone was throwing it away. I have repotted it with cactus soil mix about 4 months ago.
Any info, would be greatly appreciated.
You have a Cereus peruvianus and as you say, it’s clear that you have “rescued” it. We use slow release organic nutrients (we sell our own mix, too), so if you haven’t fertilized yet, now would be a good time. (If you’ve used something stronger, that can possibly be a cause of the yellowing.) When our cactus look yellow after the winter, we also will add Kelp Meal.