Leaf shoot and leaf fall
The only one is the Kerrs plane tree, scientifically Platanus kerrii, evergreen. All other species are summer green and are therefore leafless in winter.
- Leaves emerge mainly in April and May
- The beginning of budding depends on the weather
- there are also regional differences
- in autumn the plane tree loses all of its leaves
also read
- Sycamore - interesting facts about the tree
- Sycamore - a family of eight species
- Sycamore - what is the difference to maple?
In weeks of mild spring, the plane trees can sprout early. If there is a cold snap afterwards, are Frost damage possible. Usually the tree sprouts new leaves 4-5 weeks later.
Leaves of the maple-leaved plane tree
The maple-leaved plane tree is widespread in our country, both in public spaces and in private gardens. Their leaves are very reminiscent of maple leaves, which explains their name. But it is also called the common plane tree. In detail, its leaves show the following characteristics:
- they are palmate
- with 3-5 triangular lobes of different sizes
- Flaps can be slightly serrated
- the petiole has a length of 5-10 cm
- the leaf blade is 15-20 cm long and wide
- Upper side is bright green and shiny
- Firm and hairy underside
- the autumn color is inconspicuous
Note:
The fine hairs on the underside of the leaves, which are also found on the fruits of the plane tree, break off easily. Inhaling these hairs can cause allergic reactions in sensitive people.
Leaves of other types of plane trees
The oriental plane tree, also known as the oriental plane tree, acquires a spreading crown with age, which can reach a diameter of up to 50 m. There are many leaves to admire every year! They are 5 to 7 lobes and up to 30 cm wide. In summer they are deep green, in autumn they are decorative bronze or at least light brown in color.
The leaves of the American plane tree, also known as the western plane tree, are light green in color. They are 3-5-lobed, occasionally 7-lobed, and less often unlobed. Their width is about 25 cm and the length about 20 cm.
Leaf problems
In dry and hot summers, the leaves of the plane tree can hang limp, indicating a lack of water. At this point, at the latest, the plane tree must be poured in a targeted manner.
Other changes in the leaves are usually symptoms of various diseases. Yellowish leaves indicate the wilting of the plane trees, which cannot be combated and which leads to the death of the tree. Brown leaf spots and wilted shoot tips are observed after the outbreak of the leaf tan fungal disease. It usually only affects the first generation of leaves and is only dangerous if it occurs several times in a row.
