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).

Project BudBurst Plants

We have identified 39 Evergreen Trees and Shrubs that are easy to identify and widespread across the continental United States.

Dodonaea viscosa
Wikstroemia uva-ursi
Sida fallax
Osteomeles anthyllidifolia
Psydrax odorata
American hollyAmerican holly
Ilex opaca
Barbary ragwortBarbary ragwort
Othonna cheirifolia
Big sagebrushBig sagebrush
Artemisia tridentata
Black mangroveBlack mangrove
Avicennia germinans
Black sageBlack sage
Salvia mellifera
Pithecellobium guadalupense
California buckwheatCalifornia buckwheat
Eriogonum fasciculatum
California sunflowerCalifornia sunflower
Encelia californica
Coyote brushCoyote brush
Baccharis pilularis
Curl-leaf mountain mahoganyCurl-leaf mountain mahogany
Cercocarpus ledifolius
Evergreen huckleberryEvergreen huckleberry
Vaccinium ovatum
Holly-leafed cherryHolly-leafed cherry
Prunus ilicifolia
Arctostaphylos uva-ursi
Acacia koa
Diospyros sandwicensis
Rhus integrifolia
Locust berryLocust berry
Byrsonima lucida
Pipturus albidus
Mountain laurelMountain laurel
Kalmia latifolia
Myoporum sandwicense
Oak mistletoeOak mistletoe
Phoradendron leucarpum
Oregon grapeOregon grape
Mahonia repens
Metopium toxiferum
Gaultheria shallon
Sea grapeSea grape
Coccoloba uvifera
Sea ox-eye daisySea ox-eye daisy
Borrichia frutescens
Sea rosemarySea rosemary
Argusia gnaphalodes
Southern live oakSouthern live oak
Quercus virginiana
Southern magnoliaSouthern magnolia
Magnolia grandiflora
Sticky monkeyflowerSticky monkeyflower
Mimulus aurantiacus
Heteromeles arbutifolia
Morella cerifera
Whiteleaf manzanitaWhiteleaf manzanita
Arctostaphylos viscida
Yaupon hollyYaupon holly
Ilex vomitoria