Originally Posted by Frxn
Although the zen garden is a good way of increasing your cash (even moreso if time changing works) not too long into the game I had more money than I needed, not trying to put you down or anything, just saying that you don't need to go out of your way for it really. But this might be useful to new players that have just started and don't want to wait
I want to know what strategy you used
It takes a long time (roughly 10-20 minutes) to farm cash that's shown in the Trophy Guide and you only get $8,000 every time if your lucky. Most plants sell for $8,000 when they are fully mature plus they give you 1-2 diamonds... That's $9,000 to $10,000 on a single plant that took less than 5 minutes to feed, water and change the time. When you do this to multiple plants at once, you can easily gain $100,000 in 10-15 minutes.
I spent hours and hours playing the mini games, mostly Last Stand and only getting about 30 bags for my Tree of Wisdom. Did this trick and I had my Tree of Wisdom to 101 feet within 30 minutes and still had money to buy/upgrade my house and buy the garden accessories.