Photo: Thesupermat · CC BY-SA 3.0
Plant Facts
Quick Answer
Walnut pollen is shown in this guide as a yellow and gold tone. It is listed as tree, associated with spring bloom timing, USDA zone 4 - 9, and pollen forage value.
Pollen Color Notes
The visual color shown for Walnut is grouped broadly with yellow and gold 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
Walnut is listed for spring. The record lists USDA zone 4 - 9; hardiness zones are planning context, not a precise flowering calendar. Approximate bloom months in the supplemental notes: April, May, June.
Its forage type is pollen, with pollen value marked as medium. Walnuts are wind-pollinated and provide pollen rather than floral nectar; bee collection is opportunistic.
Identification Notes
Deciduous trees with pinnate leaves, hanging male catkins, small female flowers, and nuts enclosed by a husk; the label covers multiple Juglans species.
Flower color note: Yellow-green to brown male catkins; inconspicuous female flowers. Flower color and pollen color may differ.
Related by Similar Color
Related by Season
Related by Plant Type
Related by USDA Zone
Related by Bee Forage
Sources
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