This one’s pretty easy: herbs. As long as you know what you’re looking for, it’s possible to find a variety of plants to put together a potful of herbs.
In conclusion, to grow multiple plants in one pot, start with three or four seedlings and keep the soil moist and warm. At first, you may need to water twice a day and feed with an all-purpose fertilizer that contains slow-release fertilizer and some micronutrients.