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Sunflower Seeds - Mongolian Giant - ORGANIC
$3.25
Expected to be back in stock by May
Helianthus annuus
ORGANIC. Flower stalks can reach a whopping 14' tall in 4 months! Huge 16-18" heads bear some of the finest eating seeds we've tried. This sunflower produces the kind of blossoms that will win you a blue ribbon in the county fair! Direct seed in full sun after danger of frost. Summer-fall blooming. Annual.
Out of stock
- Planting Information
- Growing Information
- Reviews
| Approx. Seeds per Packet | Average packet weight | Seeds / gram | Average seed / oz |
| 14 | 1.75 grams | 8 | 240 |
| Planting Season | Ideal Soil Temp | Sun | Frost Tolerance |
| After Last Frost | 65-85°F | Full Sun | Frost Sensitive |
| Sowing Method | Seed Depth | Direct Seed Spacing | Days to Harvest |
| Transplant or Direct Seed | 1" | 4-16" | 90-100 |
| Mature Spacing | Days to Sprout | Production Cycle | Seed Viability |
| 8-12" | 5-12 | Annual | 4-6 years |
Site Selection
Sunflower is a frost sensitive annual that prefers full sun and well-drained soil with low to moderate moisture. Drought tolerant once established.
Planting
Direct seed outdoors once the danger of frost has passed. Optimum soil temperature for germination is 65-85˚F. Sow 1" deep and 4-6" apart. Seeds will sprout in 5-12 days. Thin so mature plants are 8-10" apart.