Organic gardening is really fun because you can produce delicious veggies naturally right in your home and gardens. This liquid increases nutrients in the soil and therefore in the plants growing in it, especially potassium levels. This concoction can be made at home from many common fruits and costs far less than purchasing organic liquid fertilisers. The fermenting process takes at least a week to complete, but may take a month or longer. Overripe sweet fruits are ideal for creating fermented fruit juice.