Systematics and origin
The vinegar tree has the Latin name Rhus typhina. It belongs to the genus Rhus, which contains between 150 and 250 species. Another name for the vinegar tree is deer cob umach. It grows as a multi-stemmed shrub that sheds its leaves in winter. The original distribution area is in North America, where the vinegar tree grows in open landscapes preferentially on stony and sandy soils.
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Particularities:
- young twigs with blue frosting and dense velvety hairs
- Age: 60 to 70 years
- seldom grows as a single-stemmed tree
biology
Vinegar trees are unisexual and dioecious. They develop male and female flowers that bloom staggered in time on an individual. This prevents self-pollination. Insects are responsible for fertilizing the female flowers. After the flowering period, which extends from June to July, the female flowers develop into fruit clusters. It is typical that fruits are formed even after fertilization has not taken place.
Blade characteristics:
- Pinnate leaves
- arranged alternately
- Leaflets with serrated leaf margin
Root growth
The shrubs grow between three and seven meters, with optimal site conditions up to twelve meters high. As shallow roots, the shrubs develop a creeping root system close to the surface of the earth. The extension of the roots is extensive. It is not uncommon for them to grow up to ten meters away from the mother plant. They have a strong tendency to develop instincts. These root shoots are more common when the stems and roots have been damaged.
Conservation status and ornamental value
The ornamental value of these woody plants is high because of their attractive autumn colors. However, when planting, you should note that the vinegar tree is not a native species. When it grows uncontrollably, it displaces the native flora. Its intense urge to spread brought the vinegar tree the status of invasive Neophytes a. While there are no legal regulations for use as an ornamental wood in Germany, planting the bushes is now prohibited in Switzerland. You should take appropriate measures to protect other plant species in your garden. Root barriers or cultivation in pots are effective methods.
