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Dragon Fruit Tree

Q.Size Pot For Dragon Fruit?

Zone 10001 | Cjj44 added on July 20, 2021 | Answered

The cactus in the picture was the base of a “Moon Cactus” for about 3 years. I understand it is probably some kind of Dragon Fruit. It is now in a shallow 4-inch pot. I want to give it a moss pole when I repot it, so it has something to climb. It is growing exponentially, as expected, so I would like a recommendation as to the size pot I should put it in and how long I should wait. Just FYI, it has to be inside, in a south window. I have read the pages about dragon fruit, but just need a little more info…Thank you

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Certified GKH Gardening Expert
Answered on July 21, 2021

It does appear to be Hylocereus undatus, or Dragon Fruit.

I would not put it into its final container, however. This will lead to rot, as there will be a lot of uncolonized soil that will remain wet.

What I would recommend would be to pot up to a container that is, only, 2 inches bigger on all sides each time you do. Wait until roots are circling the bottom of the container before each transplant, and be sure that there is plenty of drainage holes in the bottom. It is best to have free flow of water out of the container, and a saucer to catch water and to remove it as soon as you see it. This way it never sits in water.

A south facing window is good, but if you want it to fruit at any time, you will need more light. 200 watts should suffice for the plant. Make sure that this is good quality lighting, and not a cheap LED panel. This will be a death sentence for the plant.

Once these conditions are met, it will start to grow faster. If you can keep the temperatures above 90F, it will grow VERY fast.

Here is a collection of articles that will offer more information on the care of the cactus:


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