Onion Pollen Color

Allium cepa

Onion 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 guideOnion pollen

Photo: Hüseyin Cahid Doğan · CC BY-SA 4.0

Plant Facts

SeasonSummer
USDA Zone5 - 10
Plant TypeCrop
ForagePollen and nectar
Pollen ValueLow
Nectar ValueMedium
Color FamilyOrange and amber
Scientific NameAllium cepa
Common NamesOnion
Reviewed2026-10-11

Quick Answer

Onion pollen is shown in this guide as an orange and amber tone. It is listed as crop, associated with summer bloom timing, USDA zone 5 - 10, and pollen and nectar forage value.

Pollen Color Notes

The visual color shown for Onion 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

Onion is listed for summer. The record lists USDA zone 5 - 10; hardiness zones are planning context, not a precise flowering calendar. Approximate bloom months in the supplemental notes: June, July, August.

Its forage type is pollen and nectar, with pollen value marked as low and nectar value marked as medium. Onion flowers can provide nectar and pollen in seed-production or bolted crop contexts, but value varies by cultivar and management.

Identification Notes

Onions have hollow leaves and rounded umbels of small flowers when allowed to bloom. Use the allium scent, bulb crop context, and umbel structure with pollen color.

Flower color note: White to pale purple. Flower color and pollen color may differ.

Related by Similar Color

Rough Oxeye - Orange and amber Green-and-Gold - Orange and amber Carolina Silverbell - Orange and amber Spanish Needles - Orange and amber Yellow Sweet Clover - Orange and amber Cedar - 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

Alsike Clover - Crop Asparagus - Crop Broad Bean - Crop Broccoli - Crop Buckwheat - Crop Cabbage - Crop

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 Plant Hardiness Zone Map
United States Department of Agriculture / reviewed 2026-07-12
USDA hardiness zone context NC State Extension Gardener Plant Toolbox
North Carolina State University Extension / reviewed 2026-07-12
plant identification, flower description, landscape and growing context Missouri Botanical Garden Plant Finder
Missouri Botanical Garden / reviewed 2026-07-12
plant identification, flowering context, garden plant descriptions Wikipedia and Wikimedia Commons
Wikimedia Foundation contributors / reviewed 2026-07-12
plant image, image credit link
Onion (Allium cepa) flower head with many small open flowers

Photo: Hüseyin Cahid Doğan · CC BY-SA 4.0