Sunflower
SpeciesHelianthus annuus
Fact sheet
every fact quoted from its source“Sunflowers are annual plants, meaning one plant’s lifespan lasts less than one year.” — How long does it take for a sunflower to grow? – Home for the Harvest
“Seeds sprout within 7 to 10 days” — Sunflower - Helianthus annuus: Varieties, Care & Uses
“From Seed to Full Bloom in 60-90 Days” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“seeds planted in cold soil (below 55°F)” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“sunflowers need 6-8 hours of direct sun daily” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“Water regularly after planting until roots are established” — Sunflower - Helianthus annuus: Varieties, Care & Uses
“USDA recognizes Helianthus annuus as both a native wildflower and a major agricultural plant” — Sunflower - Helianthus annuus: Varieties, Care & Uses
“Space plants 12–24 inches apart” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“they hit 6-foot tall and burst into yellow just 75 days later” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“seed” — Sunflowers: Planting, Growing, and Caring for Sunflowers
“Start seeds indoors 2-3 weeks before your last frost” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“or direct-sow after the soil warms” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“The payoff? Golden faces tracking the sun by late summer” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“For sunflowers grown for their edible seeds, particularly ones with large striped seeds preferred for roasting whole, the flower heads won’t be harvested until the back turns yellow-brown and the head begins to curl back on itself and droop.” — How long does it take for a sunflower to grow? – Home for the Harvest
“Pests like sunflower beetles or aphids” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“Fungal diseases (e.g., downy mildew or rust)” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“corn” — 25 Best Sunflower Companion Plants (and 7 to Avoid) - Fluxing Well
Who grows this
No grower lists Sunflower yet. Follow this card to hear when one does. Grow it yourself? Find your nursery and claim it.
Where this comes from
- Name and place in the family tree: GBIF Backbone Taxonomy (CC BY 4.0)
- Linked record: Wikidata (CC0)
- Wikipedia: Sunflower
- Fact sheet: 8 source pages, read and quoted by the OmniGrowers Librarian