Silphium asteriscus var. trifoliatum
Height: 4-5 ft
Spread: 2 ft
Bloom Time: June-September
Sunlight: Full Sun to Part Shade
Soil Moisture: Dry-Very Dry
Yellow flowers bloom in large clusters, with big leaves at the base of each plant. Stems often take on a reddish color. Goldenrods host 112 species of caterpillars, which are used as part of the life cycle of many other native creatures including solitary, non-aggressive Thread-waisted Wasps. These wasps feed their growing larvae with paralyzed caterpillars. We photographed this one at the nursery carrying the caterpillar back to its nest.