This plant gets it name from the leaves which form in sets of 3 or 4 and whorl around the stem. The open yellow flowers form at the end of the stems, which can reach a height of 6-7’. Very tolerant of many conditions, but prefers dry, open, sunny areas.

Height: 6-7’
Color: Yellow
Conditions: Full sun, well-drained soil
Flowering: June-Sept.

Whorled Rosinweed

Silphium trifoliatum