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Sunflower Seeds, Autumn Beauty
Description
(Helianthus annuus). A beautiful sunflower! The many 6-inch flowers in brilliant red, gold, yellow, rust, and burgundy. Autumn Beauty blooms over a long period and makes a wonderful display. The tall, 7-foot plants are a customer favorite.
- Annual
- 70-100 days to maturity
- 8-12 hours of full sun
- Sprouts in 7-14 days
- Seed Depth: 1/2"
- Plant Spacing: 18-24"
- Ideal Temperature: 65-75 F
- Frost Hardy: No
Growing Tips
Autumn Beauty sunflowers grow best in full sun and prefer rich soil and moderate soil moisture. They are easy to grow, require minimal maintenance, and are also drought-tolerant once established. Consistent watering, especially during early growth, helps to keep plants healthy.
When to Grow
Sow seeds directly outdoors after the last frost, when soil temperatures reach at least 50 F. Alternatively, you can start seeds indoors 2-3 weeks before the last frost. These sunflowers prefer warmer temperatures for germination, so be sure to check your local frost dates before planting​.
How to Sow and Plant
Sow seeds 1/2 inch deep. Thin the seedlings to 18-24 inches apart after they emerge to ensure proper spacing, as this helps avoid overcrowding and allows better air circulation. Planting in well-draining soil enriched with compost improves growth​ as well.
How to Grow
Autumn Beauty sunflowers bloom within 70-100 days of planting, adding vibrant colors to the garden from mid-summer through early fall. It’s important to water regularly, especially during dry spells, but avoid overwatering to prevent root rot. These tall sunflowers may require staking to support their height and prevent toppling in windy conditions.
How to Save
- When petals die back and heads begin to dry and turn brown, place a paper bag over the heads to protect seeds from birds.
- After a few days, the heads will dry to a dark brown. Bring the heads indoors and hang them upside down in a dry area in direct sunlight for up to a week, shaking seeds free each day.
- Store in a cool, dark, dry place.
FAQ
How tall do Autumn Beauty sunflowers grow?
These sunflowers typically grow to 7 feet tall, but they can get even taller under ideal conditions.
When do Autumn Beauty sunflowers bloom?
These sunflowers bloom mid-summer through fall, producing numerous colorful blooms throughout the season​.
Are Autumn Beauty sunflower seeds edible?
Yes, the seeds of Autumn Beauty sunflowers are edible and can be harvested for eating or replanting​.
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