Even if the liver balm is actually perennial, it is usually offered as an annual plant in garden centers and nurseries. Don't be put off by this and dare to overwinter the relatively easy-care Ageratum.

location and soil
A warm and sunny location is best for liver balm. Only with sufficient light (at least five hours a day) does it bloom as lavishly and persistently as you wish.
The soil may be slightly damp, but should not be prone to waterlogging. That is why permeability is important. In good time before the first frost, the liver balm should be brought to a suitable winter quarters if you want to overwinter it.
Water and fertilize
Pour your liver balm thoroughly, but not too much either. Ideally, don't let the soil dry out or "drown". Waterlogging can quickly lead to the roots of your liver balm rotting. Add a little liquid fertilizer to the irrigation water about every two to three weeks.
The liver balm as a cut flower
Especially the larger varieties of liver balm are very suitable as cut flowers. Depending on the weather, the blue, pink, white or violet flowers can be seen well into October or even November. By cutting, you also encourage the plant to form new buds.
diseases and pests
In addition to the root rot, which occurs due to too moist soil or too much watering, pest infestation also occasionally occurs with the liver balm. Spider mites and aphids should be mentioned here in particular, but also aphids and whiteflies. With good care and in the right location, however, this is rarely to be expected.
The essentials in brief:
- sunny and warm location
- fresh, well-drained and nutrient-rich soil
- water thoroughly
- fertilize every 2 to 3 weeks
- good cut flower, especially taller varieties
- suitable for planting in tubs and balcony boxes (€109.00).
- not hardy
- Overwintering possible, but buying new is usually cheaper
tips
Since liver balm is one of the poisonous ornamental plants, you should think twice before planting it in a garden where children play.