Spotted beebalm can be sown in the spring or the fall. In temperatures of 20 to 25 ℃, spotted beebalm will germinate after 2 to 3 weeks. Before sowing, exposing the soil to sunlight will kill harmful microorganisms in the soil. If you are worried about uneven sowing, it is advisable to mix the seeds with some fine soil before sowing and then spread them in a flower pot or a sunny part of the garden. Keep the plants spaced about 46 to 61 cm apart and water thoroughly after sowing.
You can also use division to propagate new plants, which should be done in the spring or the autumn. Many small new seedlings will sprout around the old plant. Dig up the new plants and separate their roots before planting them elsewhere. Alternatively, divide the tufted plant into 3 to 5 branches and plant them directly. For potted plants, small varieties should be selected. It is best to change the pots once a year, usually in the spring or the fall.