Gregg's Mistflower

Gregg's Mistflower is a perennial forb native to Edwards Plateau, South Texas Plains, Trans-Pecos. It grows best in full sun with low water needs.

Gregg's Mistflower (Conoclinium greggii) is the most important fall nectar plant in the Edwards Plateau and Trans-Pecos. The powder-blue flower clusters bloom from August through November, exactly when monarch butterflies are moving through Texas on the southbound migration. The Xerces Society cites Gregg's Mistflower as a critical fueling stop for monarchs in the Hill Country and South Texas corridors.

Gregg's Mistflower is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats. It grows 1-2 feet tall and spreads 1.5-3 feet wide, staying compact enough for front yards and foundation beds. For HOA neighborhoods, it reads as an intentional perennial with neat blue flowers from late summer into fall, a season when most other perennials have finished.

Ecoregion notes for Texas. In the Edwards Plateau and Hill Country (alkaline limestone, 25-35 inches of rain): native and outstanding. Plant in full sun, water once a week through the first summer, then leave it. It spreads slowly by rhizomes into a small colony. In the Trans-Pecos and South Texas Plains (alkaline desert and brush country): also native; drought-tough once established. In the Blackland Prairie (DFW-Austin-San Antonio, heavy clay): not native but performs well in landscape use; amend with decomposed granite or grit to improve drainage. In the Pineywoods: not recommended; too humid.

Gregg's Mistflower pairs with Plateau Goldeneye and Autumn Sage for a complete fall pollinator sequence from September through November. Cut back to 6 inches in late winter to encourage dense regrowth. If you see monarch caterpillars on nearby milkweed, the adult butterflies feeding on this plant are the same ones completing the cycle.

Bee species data compiled from GBIF, iNaturalist, Discover Life, and the USGS Native Bee Inventory and Monitoring Lab. Plant-pollinator associations informed by published ecological literature.