With the right location, the thousand beautiful flowers bloom until summer. The cultivated sweetheart is a little more sensitive than the natural form.
But if you do it cleverly, it will bloom well into the summer. You should keep an eye on the soil in the pot: While the plant only needs water about twice a week outdoors, this can be the case more often in thePot. A drainage layer is also important here so that the water does not build up. In the bed you can usually do without fertilizing; in the Pot it makes sense to use liquid fertilizer about every three weeks.