Plantera

Basically everything you touch produces coins. If using the Date/Time Exploit this will take no time at all. If doing it legit, this will take some grinding as it is not accumulative and you must have 1.000.000 Coins on you in one go. You can leave your workers to do it for you but you can also help them by dropping the Fruit from the Trees and Bushes in order to speed your progress up. Be sure to scare/remove all things that put your garden in danger and collect all things worthwhile.

Offline Date/Time Exploit:

As of v1.00, you are able to exploit the Vita's Date/Time settings to make the game think more Days/Hours have passed. If you want to use this exploit, start up the game and plant your first available items. Once you get things going and are ready quit to the main menu. The game auto saves whilst playing, as well as every time you quit to the main menu. Exit to the Main Menu, then open up the Day/Date Options menu within your Vita's settings menu and move the date/time forward. You do not need to close the Plantera App. When you go back into the game, it will think that "real-time" has passed, thus earning you money while you were "away".

As in real life, your workers will only work for a certain amount of time each day; therefore if you want this exploit to be more effective, play normally until you are able to get the Alarm Clock Upgrade and purchase it. The alarm clock will increase the amount of time your workers are working whilst you are away from the game. The amount of time can be viewed by pressing whilst on the main game screen. This shows the amount of time they will work while you are away. It is not per day but total time. It is therefore recommended that you only forward time by one day at a time.

If using the exploit, you will not level up or get anything towards the Animal trophies but you will however, earn money for Worth A Million and will help with Land Owner. When you start playing again the game will recognise that your workers have been attending your garden. It will also therefore level you up relevant to the amount of work that has gone on. Once you have a million coins, you are free to use the exploit for Journeyman.

This has yet to be tested with the update installed, as it has not been released in the EU yet.