I have a sim who mastered gardening/cooking/fishing skills. According to sims wiki, I should have get omni plant and some other plants via skill opportunities. Because my sim is filthy rich, I wasn't paying any attention to opportunities, because I thought they were just for extra money. However, I want to get Master Planter challange, and for that, I need to plant every possible plant. Can I somehow get this opportunities again? My sim is kind of immortal, so in game time is not problem.
Edit: I just realized I had something else filling up my skill opportunity slot. I removed it and waiting for the moment. But this question is still valid.