Arikara Sunflower seeds produce yellow bloom on 97–120 in upright/erect plants. Annual growth and Summer/Fall bloom make it useful for sunny borders, cut flowers, pollinator use, seed heads, and seed saving. About Arikara Arikara is an annual sunflower with yellow color, 97–120 in mature height or spread, and an upright/erect habit. Harvest form or size: Flower or head form characteristic of Arikara; mature plant 97–120 in. Botanically it is Helianthus annuus. Maturity or first bloom: 90-99 Days; germination: 7-14 Days at 65–80 °F. Best for sunny borders, cut flowers, pollinator use, seed heads, and seed saving. Ornamental bloom and mature seed use depend on the named strain and harvest stage. History and provenance Arikara sunflower is a historic name associated with an Arikara seed-sunflower population of the northern Plains. The name carries a real relationship to Indigenous agriculture, but the seed lot has not been independently authenticated by the Mandan, Hidatsa and Arikara Nation. The documented association and seed-producing traits are retained without claiming an uninterrupted community custody chain or speaking for the Nation. Mature heads can be left for bird forage or dried for seed use, while seedkeepers should preserve the source label and a broad planting population. Growing facts Scientific name Helianthus annuus Life cycle Annual Maturity / first bloom 90-99 Days Germination 7-14 Days at 65–80 °F Seed depth 1 in Plant height / spread 97–120 in Growth habit Upright/Erect Spacing 12 in between plants; 30 in between rows Sunlight Full sun Soil Loamy; pH 6.0–6.5 Water Moderate Support Stake Starting Arikara from seed How to grow Arikara Sunflower Botanical identity: Helianthus annuus. Life cycle: Annual. Sow 1 in and use a seed-zone temperature near 65–80 °F. Expected emergence: 7-14 Days. Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation. Plant during Late Spring. Space plants 12 in apart with 30 in between rows or planting bands. Provide Full sun, moderate water, and loamy near pH 6.0–6.5. Support: Stake. Garden performance and care For a longer display of Arikara, remove spent blooms unless seed is being saved. Give the plant its listed spacing, cut flowers with clean tools, and leave selected heads to mature fully for seed. Expected emergence is 7-14 Days; the listed maturity or bloom timing is 90-99 Days. Harvest, bloom, and uses Arikara is suited to sunny borders, cut flowers, pollinator use, seed heads, and seed saving. Its yellow flowers and 97–120 in stature help determine whether it belongs in a border, cutting row, container, meadow edge, or restoration-style planting. Ornamental bloom and mature seed use depend on the named strain and harvest stage. Saving seed Save seed from several healthy, true-to-type Arikara plants identified before harvest. Confirm the pollination system of Helianthus annuus, separate compatible varieties that flower together, and remove clear off-types before they shed pollen or seed. Allow fruit, pods, ears, or seed heads to reach full biological maturity, then clean and dry the seed completely. Label the lot with variety, source, year, isolation method, number of seed plants, and any selection notes; store it cool, dark, and dry and test germination before an important planting. Common problems Common concerns: damping-off from saturated media; poor emergence from wrong temperature or depth; leggy seedlings from weak light; crowding and weak airflow; lodging in wind or rain; feeding damage from slugs, caterpillars, beetles, or mammals; foliar disease under prolonged leaf wetness; bird or squirrel feeding on maturing heads; stem lodging on giant plants. Management: use clean media, the sowing depth and temperature, strong light, appropriate thinning, and morning irrigation at soil level. Match support to plant height before wind becomes a problem. Inspect regularly and use the least disruptive control appropriate to the pest, plant, and pollinator setting. Remove diseased debris and rotate annual flower beds where recurring disease is severe. Frequently asked questions When is Arikara ready? 90-99 Days from sowing to the primary bloom or market stage used for the listed maturity range How long does germination take? Expect 7-14 Days near 65–80 °F; actual emergence changes with moisture, seed condition, and soil temperature. How large does it grow? About 97–120 in with an upright/erect habit. Support: Stake. Can it grow in a container? Best in the ground; a container would need to be exceptionally large, heavy, and stable How is it used? Primary role: Sunny borders, cut flowers, pollinator use, seed heads, and seed saving. Ornamental bloom and mature seed use depend on the named strain and harvest stage. Can I save seed? Yes where the crop biology allows, but keep compatible varieties isolated, use several healthy plants, wait for full seed maturity, dry thoroughly, and label the lot. Minimum Seed Count:25 seeds
