Evergreen Trees and Shrubs
What are Evergreen Trees and Shrubs?
Evergreen trees and shrubs can be non-flowering plants like conifers and ferns, or flowering plants like Rhododendrons,Sagebrush, or Labrador tea. It is any such plant which has leaves which last more than one year. Note that some plants are "wintergreen" that is they form infall and overwinter in the leaf stage, then in the spring they flower and die back. So they are not evergreens since leaves do not last more than one year. True wintergreens (Pyrola species) ironically enough are not only wintergreen but they are usually green year around and evergreen (!).
Evergreen Trees and Shrubs to Observe
Click on a plant name to the right to access printable Regular or Single Report forms to take with you when you observe your plant. These reporting forms describe the leafing, flowering, and fruiting events to look for.
If the plant you'd like to monitor is not on the list, download our Regular Report or Single Report forms for Evergreen Trees and Shrubs which describe the leafing, flowering, and fruiting events to look for.
Two Ways to Observe Evergreen Trees and Shrubs
The phases you monitor for Evergreen Trees and Shrubs will depend upon whether you are observing your plant using Single Reports or Regular Reports.
Regular Reports: Using Regular Report forms, you track your plant (or plants) throughout a season, recording the dates when key leafing, flowering and fruiting events occur (event-based reporting). The Regular Report phenophases for Evergreen Trees and Shrubs are: First Flower, Full Flower, First Ripe Fruit, Full Fruiting.
Single Reports: Using Single Report forms, you select a phase that best describes the leafing, flowering, or fruiting phase that your plant is currently in (ie. Flowers-middle or Flowers-early) on the day you happen to see it (status-based reporting). The Single Report phenophases for Evergreen Trees and Shrubs are: Flowers (None), Flowers (Early), Flowers (Middle), Flowers (Late), Fruit (None), Fruit (Early), Fruit (Middle), Fruit (Late).
We have identified 39 Evergreen Trees and Shrubs that are easy to identify and widespread across the continental United States.