this may have been coincidence but it doesnt hurt to look yourself. i found two special seeds which later turned out to be a money tree, and a life plant. in the very top right of the map is a fishing spot, both of the seeds were in that location, near the water.
PSN: Fail__ XBOX: xMotionSickness (feel free to add for custom tracks/leaderboards. Trials HD only)
I always found at least 2 special seeds every respawn by the criminal warehouse. I currently have 10 money trees, and at least 2 life plants growing. If you give yourself green thumb trait you can revive them when they die.
I have like 60 lifefruit in my inventory. (be careful when you put in refrigerator because sims will make life fruit pancakes lol).