I am sorry if I am too harsh on you.
This was discussed here before and you can read it if you type coconut tree and click on search.
If you still want to continue I am with you.
Here's one sample of a post
Location: the netherlands
Zone: 7a 8a
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Default Re: coconut tree
LOL you need a temp of 30 - 35 C daily , they need 12 - 18 hours of sunlight each day and they drink water thats on 20 degree's C.
they can't survive temp fluctations , 10 C fluctation = kill
o yes and the roots are deeeep and huge, its almost impossible to have it indoors when its a few years old, even in a 200 litre.
its only for zone 11 and higher, the grow will always stunt if you grow in colder zones, alot coconut nucifera will stunt at 20 C
i had one that was a few years old and i gave up --too big, i planted it in the garden becuase it was so badly rootbound while it was in a very big pot. so i had no choice to plant it in the garden , it died in the summer at 28 C we had no sunlight for 3 weeks here in the netherlands zone 7a - 8b
NOT MENTIONING THE RISK OF COCONUT ON YOUR HEADS
The Orion Project