Germination stage: Sunflower seeds take about 7 to 10 days to ... and ‘Ruby Eclipse’, bloom just 55 days after planting. In comparison, giant sunflower types like ‘Mammoth Grey Stripe ...

Mariah Henry, director of urban agriculture at the Carolina Farm Trust Related: How to Grow Sunflowers and Harvest Their Seeds, According to Experts Follow the below instructions for harvesting ...