Helianthus grosseserratus, Sawtooth Sunflower



This late-blooming Helianthus is perfect for restoration projects! They are excellent due to their hardiness, attractive blooms, and tasty seeds. H. grosseserratus blooms are most valuable to bees and beetles and their seeds are great snacks for birds. Take care if using H. grosseserratus in the garden as they spread through aggressive rhizomes and if left unchecked and with competition, they’ll take over your garden. We recommend pairing them with grasses to provide structural support, otherwise, they will get too tall and fall over!

  • Listing ID: 1151
  • Duration: Perennial
  • Soil Moisture: 1-5 (dry to wet): 2-4
  • Stratification: 60 days cold moist stratification required
  • Bloom Time: August-September
  • Family: Asteraceae (Aster)
  • Sunlight Exposure: Partial shade to full sun
  • Latin Name: Helianthus grosseserratus
  • Common Name: Sawtooth Sunflower
  • Eco-Region: 251