This time, we will focus on the main story of Dragon Ball Z Kakarot., more specifically on one of the steps of the quests For the Future, in the Cell saga. Yajirobe wants to grow magic beans and he needs two special items that you can't pick up in advance.
Sage Water & Goldy Grow Fertilizer
The 2 ingredients are in the Western Forest Zone near the Korin Tower, and are simply marked with yellow circles. The Southern zone contains fertilizer, look for a purple orb at the foot of the hill, guarded by an enemy. The area of the lake to the north contains the Sage water. It's on the west bank of the lake next to a rock. Once the ingredients are in hand, return to the top of the tower to deliver them to Yajirobe.
Yajirobe will now be able to give you free magic beans on a regular basis. Remember to visit him from time to time to fill up, he can store up to 9 of them.