Fast Growing Summer annual with extensive root system, breaks up compaction. Attractive flowers for pollinators. Creates extensive biomass. Produces black oil seeds that are meatier and have a higher oil content than other sunflower seeds. These seeds have thin shells, making them easy for small birds to crack. Left to stand into fall and winter, the residue can provide a wildlife shelter for many months. 100 - 110 days from planting to maturity.