It is feasible to step up farming fast with lower levels using bagged plants. In order to do this, you'll need to live in Rimmington OSRS Gold. Take along three watering cans that are filled with water, an assortment of coins , any other plants you want.
Go to the wooden house near the POH portal. You can then remove the plants by talking to NPC. Then go back to your house to plant, water, then remove them. Then return to refill with water (east of the well) and unnote more plants. Repeat the process however long you'd like however keep in mind this is a very costly method and should only be used in conjunction with lower levels.
In order to begin your journey as a farmer you will need to prepare your inventory according to what you wish to cultivate. The most essential items are spade, rake ultracompost and saplings in the same quantity as saplings, farmer's outfit (if unlocked) (if unlocked), grace outfit (if unlocked), axe, coins or runes that can be used to access teleports. If you plan to be training on herb patches , you'll require secateurs.
To begin your journey in farming you need to complete Fairy Tale Part 1 quest which is very easy and is not too long. It won't only take you from your first level up to 17th but also provide you with magic secateurs which are very useful in the training in farming.
Once you have completed that, you can take on other tasks or concentrate on doing quests that give you farming skills. There are many missions that are obtainable with being required. If questing feels like a choice for you, after Fairy Tale part 1 you could try: Forgettable tale of a drunken dwarf, Garden of Tranquility, My Arm's Big Adventure Old School RS Gold, Enlightened Journey and Recipe for Disaster (at least Goblin General part).