In 2015 the Garden joined the National Phenology Network as a partner to document how the life cycles of plants respond to climate change.
At the Garden the Phenology Project is conducted by trained volunteers who observe selected trees twice a month and record their status.
The ten phenophases being studied are: breaking leaf buds, leaves, increasing leaf size, colored leaves, falling leaves, flowers or flower buds, open flowers, fruits, ripe fruits and recent fruit or seed drop.
the Garden's four teams of volunteers are currently studying fifteen trees. Click here for a detailed description of plant phenology for the following four species being studied.