Plant overnight and in your spare time. Extra money is always good to have, especially when you need it to construct buildings for quests. Also, if you have school or work, you can plant things for extra cash then, too. Plus, you can get a lot of XP and from planting, meaning you level up faster and therefore earn more LPs. Finally, artifacts for your monuments pop up a lot, so you will be able to upgrade them faster. Note: You might want to turn a house plot into a gardening plot by demolishing the house and placing garden plots there. The more patches, the more money and XP you get.