The boar's rue, which comes from the Near East, quickly becomes a fragrant favorite in the herb bed because its smell is reminiscent of cola or lemon. It is considered easy to care for. But under certain circumstances this subshrub can turn brown.
Why does the boar's rue turn brown?
When the boar's rue turns brown,low temperaturesin autumn/winter are often behind it. The above-ground parts of the plant die off due to severe frost. The naturalwoodinessof this subshrub andwaterlogging can also be possible causes of brown discoloration.
Is it a concern if the boar's rue turns brown?
Inmost casesit isno concern if the boar's rue, also known as cola herb and cola bush, turns brown. For example, the boar's rue turns brown when it becomes woody. It is considered a subshrub and its older shoots become woody after a few months, especially in the lower area. As a result, they turn brown and can also partially become bald.
Does frost turn brown rue?
Artemisia abrotanumcanturn brown due tosevere frost. This subshrub is hardy down to around -23 °C. But the above-ground shoots freeze at temperatures below 0 °C. This causes them to brown and dry out. However, there is still life in the roots in the soil, which is why the cola bush sprouts again in spring. You just need to cut off the brown parts of the plant close to the ground in spring.
Can waterlogging cause brown rue discoloration?
Waterlogging leadsoften to brown discoloration of the cola herb. This plant is very susceptible to moisture and clearly demonstrates its displeasure with brown shoots. This is due to root rot, which occurs hidden underground. When caring for the boar's rue, be careful not to water it too generously. If root rot has already set in, you can repot the boar rue and cut off the rotten roots.
How does drought affect the rue?
In contrast to waterlogging, dryness is usuallywellby cola herbtoleratedDue to its origins, it is designed for such circumstances. For this reason, brown discoloration will not appear so quickly. However, you should provide this plant with water when there is drought, especially when it is in a pot.
Do diseases of the rue appear brown?
Inrare cases the boar's rue turns brown due to disease. For example, sooty mold fungi can form if aphids live on the cola herb. Their honeydew literally attracts fungal pathogens. But diseases and pests are usually repelled by the cola herb thanks to the essential oils it contains. It is not for nothing that this subshrub is considered a popular neighboring plant to plants that are susceptible to pests and diseases.
What can be done if the boar's rue has turned brown?
You can simply cut off brown-colored parts of the boar's rue. For example, if the discoloration occurred in the winter, you can cut the plant down in the spring. It will sprout again. If the brown color is due to waterlogging, action should be taken immediately. Here too, the brown parts of the plant are cut off.
Tip
Proper care and minimize brown discoloration
You should water this aromatic-smelling plant regularly, but not excessively, fertilize sparingly and cut it back properly in spring. It is also advisable to take precautions when planting the boar's rue and choose a permeable substrate.
