Properties of the spherical line
- refined form of the robinia
- slow growth
- low growth height (maximum 4-5 m)
- round, spherical crown
- feather-like, oval leaves
- does not form flowers
- forms dense shoots
- blue-green leaves
- Underside of leaf a little lighter
- yellow, red or brown autumn colors
- Legumes on the branches
- Seeds are 4-10 cm tall
Maintenance of the spherical line
Location
Plant your Kugelrobinie on nutrient-rich loam, sand or gravel soils. Calcareous and impermeable soils, however, are unsuitable. Also make sure that the location is sheltered from the wind so that the sensitive branches do not break off. The dwarf tree will thank you for a place with intense sunlight with good growth.
also read
- Tips and instructions for cutting a robinia
- How to plant a robinia correctly
- Clear the garden of a robinia
Cut back
As a rule, you do not have to cut back a spherical line. It is naturally poor in growth. It goes without saying that the crown can be thinned out, as the deciduous tree can withstand radical pruning. After severe storm damage, you should be careful to cut off kinked branches at the grafting points. Otherwise the spherical shape will be lost in the future.
Increase spherical line
The ball line is increased by grafting, a rather complicated process that is mostly reserved for specialists and tree nurseries.
Diseases
The Phloespora leaf spot disease is a fungus that specifically targets the globular robin. You can recognize the infestation by small brown spots on the leaves. In this case, cut off any affected branches. Sometimes a radical cut is necessary for this.
Advantages and disadvantages of the spherical line
advantages
- nice fragrance
- hardy
- small growth
- attracts insects
- easy to care for
disadvantage
- toxic
