Sun Flower pot size ?

Thanks a lot @GrowingGrannie , @Creepy_Steve and @m0use for your reply, Of course if I could grow in full ground, I'll do it, But my space in full ground, he's only few hours sun per day.. Yeah I've checked on Google, and I've seen could be grow in 15-20 l pot, and see various strains, but no idea of mine. I see you're all said me the biggest is better, thanks for your help.

i bet a similar mix that works well for marijuana will work well for the sun flower. i know morning glories are very happy with the same ratio and typical concentration i use for my marijuana plants. this can vary, but similar plants like similar things in general. pot size.. i'd google for soem plant specific info.. some like to drive deep, some like to spread out near top.. might impact the size/shape you want? going a little overboard on size will be safe and avoid the effort :P

@GrowingGrannie thanks for your reply buddy, but I mean about sun flower 🌻, not cannabis plant 😁

I grew outdoors last summer for the first time... and I grew in pots rather than put my plants in the ground. My BIGGEST mistake was to use pots that were much too small - I only used 5 gallon (19L) pots. The roots badly overheated in such a small pot and were the major contributing factor in losing the entire grow to bud rot. This year, I'm going to be putting my plants in the ground - but if that's not possible for you, the SMALLEST pot I would recommend would be a 56L - even a 75L... especially if you're growing a photoperiod (I was growing autoflowers)... The extra soil around the roots will help keep them cool... And, btw, if you want to see the volume of roots these plants produce, take a look at my harvest week of Creme de La Chem - I've got a video showing how the roots (in DWC) filled up and took on the shape of my 5 gallon bucket... Good luck!