Evening Primrose (Common) Pollen Color

Oenothera biennis

Evening Primrose (Common) pollen is shown in the orange and amber color family as general visual guidance. Use this page as a reference for pollen appearance, bloom timing, plant type, bee forage value, and available hardiness context.

Pollen color is highly variable. Lighting, pollen age, moisture, collection method, cultivar, and local growing conditions can all change how pollen appears. Use this as general visual guidance, not a scientific color standard or guaranteed field match.

Visual guideEvening Primrose (Common) pollen

Photo: LordToran · CC0

Plant Facts

SeasonSummer
USDA Zone5 - 8
Plant TypeWildflower
ForagePollen and nectar
Pollen ValueMedium
Nectar ValueMedium
Color FamilyOrange and amber
Scientific NameOenothera biennis
Common NamesCommon evening primrose
Reviewed2026-10-11

Quick Answer

Evening Primrose (Common) pollen is shown in this guide as an orange and amber tone. It is listed as wildflower, associated with summer bloom timing, USDA zone 5 - 8, and pollen and nectar forage value.

Pollen Color Notes

The visual color shown for Evening Primrose (Common) is grouped broadly with orange and amber pollen tones. It is intended for comparison and identification support, not as a laboratory measurement.

Pollen color is highly variable. Lighting, pollen age, moisture, collection method, cultivar, and local growing conditions can all change how pollen appears. Use this as general visual guidance, not a scientific color standard or guaranteed field match.

Bloom, Zone, and Forage Context

Evening Primrose (Common) is listed for summer. The record lists USDA zone 5 - 8; hardiness zones are planning context, not a precise flowering calendar. Approximate bloom months in the supplemental notes: June, July, August, September.

Its forage type is pollen and nectar, with pollen value marked as medium and nectar value marked as medium. Flowers provide pollen and nectar to nocturnal moths and also to bees that visit during morning overlap.

Identification Notes

A tall biennial with lance-shaped leaves and four-petaled yellow flowers that usually open toward evening and fade the following day.

Flower color note: Yellow. Flower color and pollen color may differ.

Related by Similar Color

Common Beech - Orange and amber Lilac (Common) - Orange and amber Evening Primrose (Wild) - Orange and amber Sassafras - Orange and amber Sweet Corn - Orange and amber Virginia Bluebells - Orange and amber

Related by Season

Adam's Needle - Summer American Basswood - Summer Basil - Summer Bee Balm - Summer Bindweed - Summer Bird's-Foot Trefoil - Summer

Related by Plant Type

Alfalfa - Wildflower Aster - Wildflower Balsam - Wildflower Bee Balm - Wildflower Bindweed - Wildflower Bird's-Foot Trefoil - Wildflower

Related by USDA Zone

Adam's Needle - Zone 4 - 10 Alder - Zone 2 - 7 Allium - Zone 3 - 9 Almond - Zone 4 - 8 Alsike Clover - Zone 3 - 8 American Basswood - Zone 3 - 8

Related by Bee Forage

Adam's Needle - Pollen and nectar Alfalfa - Pollen and nectar Allium - Pollen and nectar Almond - Pollen and nectar Alsike Clover - Pollen and nectar American Basswood - Pollen and nectar

Sources

USDA PLANTS Database
United States Department of Agriculture / reviewed 2026-07-12
scientific name, common name, distribution context, plant classification NC State Extension Gardener Plant Toolbox
North Carolina State University Extension / reviewed 2026-07-12
plant identification, flower description, landscape and growing context Lady Bird Johnson Wildflower Center Plant Database
The University of Texas at Austin / reviewed 2026-07-12
native plant context, flowering context, pollinator plant notes Wikipedia and Wikimedia Commons
Wikimedia Foundation contributors / reviewed 2026-07-12
plant image, image credit link
Yellow common evening primrose flower (Oenothera biennis)

Photo: LordToran · CC0