i was hoping for a hot and cold calculator where you enter the last few colors planted and it will tell you the highest chance of what flower should be planted next.. Most of these are viruses but i was hoping there was a clean one...

 

runescape is all luck...

 

Is something like that even possible, first i have heard of such things. The colour which will appear next is completely random from what i know, i doubt there would be anyway to figure what's next.

 

Even if you planted 10k seeds to get the next result, it may or may not work.
If you are unsure about whether playing Hot/cold or not, then don't play it, But there's no way to trick it since it completely randomized.