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Binomial Name Helianthus annuus
Taxon Species
Description Sunflowers are large flowers with bright to deep yellow ray florets surrounding a large circular grouping of disc florets that mature into seeds. Sunflowers are grown for ornamental purposes, cut flowers, or their edible seeds. They can reach heights of 300cm or more.
Sun Requirements Full Sun
Growing Degree Days
Sowing Method Direct seed outdoors after last frost in groups of 2-3, thin to 1 plant when true leaves appear
Spread (diameter) 60 centimeters
Row Spacing 30 centimeters
Height 240 centimeters