As growth of plants is closely linked to weather and climate, you can use developmental stages to break down a year into parts, so called phenological seasons. (Phenology: periodical characteristic stages of development of plants or animals). The phenological calendar divides the year in Germany into ten seasons, not four. Observing phenology enables the detection of spatial and temporal shifts in weather and climate, which is particularly interesting with respect to climate change. Another important use is agricultural planning or the prediction for seasonal pollen allergies. Further information can be found on the website of the German Weather Service.
The phenological calendar in Germany - a year with ten seasons
When the snowdrops bloom from the end of February to the end of March, the pre-spring begins.
The bright yellow flowers of the forsythia indicate the first spring from the end of March to the end of April.
The pink and white blossoms of the apple trees ring in the full spring.
When the elderflower blooms from the end of May to the beginning of June, it is early summer.
As soon as the lime trees (summer and winter lime trees) open their small flowers, midsummer has begun.
In late summer, approx. in August, the red rowan berries of the Eberer ash shine.
Early autumn begins when the elderberries are ripe.
In the phenological full autumn, which lasts from approx. mid-September to the end of October, it is chestnut season!
Late autumn begins as soon as the leaves of the oak trees turn autumnal.
The needle fall of the European larch marks the beginning of the phenological winter.
With Flora Incognita through the phenological year 2019
Flora Capture and Flora Incognita observations provide the possibility to monitor phenology all across Germany over a long time period. With last year´s observations we are already able to illustrate the phenology of some species – as shown here with the species Old Men´s Beard (Clematis vitalba). This year we aim for specific plants whose observations will help us monitoring the spatial and temporal progress of the phenological seasons. The species will be introduced in this info section before the respective phenological phase begins. We kindly ask you to send us a Flora Capture or Flora Incognita observation as soon as you spot one of those species starting to bloom