Many plants, especially perennial herbs, are suitable for dividing and splitting.
This then gives the original plant more room, can rejuvenate it, helps new growth and gives a few extra plants to be planted elsewhere or even shared with others.
There was also an extra shoot as well, giving 2. These are potted up, they could have also been planted straight in the ground, like this one;
Eventually they will be potted on again or planted.