You might think that the cemetery management game has nothing to do with farming, but it is not. Farming isn't as difficult here as it is in Stardew Valley, but it still plays a role in making money.
To start growing your own crops, you need to obtain permission to use the Kitchen Garden from Horadrik, the owner of the Dead Horse Inn. This is the first NPC you'll meet in the game, so it's not hard to find him.
Talk to him about the garden, and he will give you permission to use it, while giving you a quest with a merchant. Now the Kitchen Garden is yours, and as soon as you get the seeds, you can start planting right away.
All you have to do is just go to the blueprint table in the garden southeast of your house, select the Empty Garden Bed option and place it where you want it. They can be used to plant seeds without watering the seeds - just wait a few days and then harvest.
Over time, you can unlock additional gardening items in the skill tree, such as the Compost Pile, which is used to create fertilizer, but can actually be useful in increasing the graveyard's rating.
All you have to do is get a bunch of compost from crop waste and it will produce peat over time.
Where to find seed merchants
Now you need to get seeds for planting, and the game doesn't really explain where you can buy them. So, just start walking east of your graveyard and eventually you will see a large wheat field. When you find yourself at the crossroads in the center of the field, head south and you will find yourself in front of a house with two NPCs.
The NPC on the right is a farmer and he sells most of the seeds in the game. However, at the beginning, some views are closed, so you will need to spend some money from him to open the second and third rows.
However, in the end you will need a crafting oil that is made from hemp seeds. And since the farmer doesn't have them, head down the dirt road east of the village until you find a bunch of stone ruins. NPC Dig should be among these ruins. He is the only person in Graveyard Keeper who sells cannabis seeds, whose harvest becomes very important after a few hours of playing.
The third NPC is a trader who sells grape seeds. He can be found in front of the barn, just south of the Dead Horse Tavern. Keep in mind that he is there only on those days that are marked with the sign 
.
What can be grown on the farm
You can grow various types of vegetables and grains on your farm. Below are all types of crops with price and number of energy points.
Pumpkin
Grown from seeds that can be purchased from a farmer for 30 Brown Coins. Pumpkins are grown to varying quality levels and can be improved with fertilizers. If you learn to use the pumpkin on the training table, you will receive 30 green points.
Pumpkin types:
Hop
Hop Seeds can be obtained from Miller, he will collect them for you from his vineyard. Hops have 3 quality levels: gold, silver and bronze. If you get hops marked with a gold star, it is best if you sell them to Miller. With hops, you cannot learn.
Hop types:
Carrots
You can buy carrots from a farmer or get seeds from a donkey. Carrots are needed to complete tasks for the trader, vendor, and donkey. Fertilizing will not change the quality of the crop, but it can speed it up.
Carrots cost 10 copper coins and give 5 energy points
Bow
You can buy onion seeds from a farmer. This is a crop with three quality levels: gold, silver, bronze. You cannot learn to use a bow.
Bow types:
Hemp
Can be bought from an NPC named Dig, but you must first get 5 Kegs of Honey. Hemp is a crop with varying quality levels and can be improved with fertilization.
Gold grade hemp is best for sale or for acceleration powder.
Cannabis types:
Cabbage
One of the easiest crops to buy from a farmer. Cabbage has no quality levels. Consuming cabbage gives 5 energy points; you can also sell it for 10 coins and get 15 green points during training.
Wheat
Wheat can be bought from Miller. You can speed up its cultivation with fertilizers. Selling wheat will give you 10 coins.
Beetroot
The main vegetable, the seeds of which can be purchased from the farmer. Gives 8 points of energy; you can also sell it for 16 coins and get 20 green points during training.
Lentil
You can buy lentils from a farmer. This is a unique vegetable because you need sticks to plant it. Lentils come in different quality levels and can be improved with fertilizers. You can get Lentils by examining 30 Green Dots.
Lentil types:
Grapes
You can buy grape seeds from a merchant. Grapes are crops that can be improved with fertilizers. You can get grapes by researching 50 green points.
Types of grapes:
