Tracking Change in Seasons and Climate Around the Globe
Each fall, people across the northern hemisphere plant Red Emperor tulip bulbs in Journey North Test Gardens to help monitor seasonal change in a scientific way. In the spring, when the plants emerge and bloom, test gardeners report their data to the maps. One garden at a time, the relationship between climate, geography, and the arrival of spring is revealed.
Local climate affects where, when, and how plants grow. Over time, the timing of plant growth can be used as an indicator of climate change. Everyone who participates in this international tulip test garden project contributes valuable information to a long-term database.
Join the Fun!
This fall, plant your own Journey North Tulip Test Garden so you can proclaim the arrival of spring from your part of the world. Follow news updates and explore tulip maps to predict when spring will reach your hometown.