Nature Today | De Natuurkalender

Latest observations

Updates

The 2017 growing season of a Dutch birch captured by the GrowApp 10-Dec-2017
Capture the green explosion in your surroundings with the GrowApp; now also available on iOS 01-Apr-2017
GrowApp: make an animation of climate change in your backyard 20-Mar-2017

Extra attention

Hazel

Record your first flowering of hazel: Anonymus or With account

Click here for the species of which we would like you to record your sightings.

Observations per week

Map

Jan Dec

First flower

The Dutch phenological network with observations of yearly recurring life cycle events in nature since 1868.

The new website has been made possible by the Prins Bernhard Cultuurfonds and Wageningen University.