Photo: Rasbak · CC BY-SA 3.0
Plant Facts
Quick Answer
Hogweed pollen is shown in this guide as an orange and amber tone. It is listed as wildflower, associated with summer bloom timing, USDA zone 4 - 7, and pollen and nectar forage value.
Pollen Color Notes
The visual color shown for Hogweed 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
Hogweed is listed for summer. The record lists USDA zone 4 - 7; 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. Open umbels offer accessible pollen and nectar to many insects; sap and sunlight can cause skin reactions in Heracleum species.
Identification Notes
A robust perennial with lobed leaves and broad white umbels. This entry refers to common hogweed, not giant hogweed (Heracleum mantegazzianum).
Flower color note: White to pinkish. Flower color and pollen color may differ.