I DID IT!!!!!!! THE FINAL EVOLUTION!!!! GIGAFRUIT!!!! GIVE ME A MEDAL!!!
For anyone else trying to finish, it took me 5h 30m to finish this. The evolution requirement is exponential, you'll need 2^10 = 1024 level 1 seed to get the final one. Also need 512 more to buy those seeds. Do not wait to sell high level ones as the price goes down drastically. Selling level 1 and 2 are optimal.
Selling price for every evolution: 4 ,9 ,16 ,20 ,48 ,72 ,112 ,214 ,366 ,600 ,1000
It was fun and additcive!