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Sunflower Seeds, Tall Orange Sun
Description
(Helianthus annuus). These clear yellow-orange, six-inch, fully double flowers look like super-sized chrysanthemums, perched atop plants reaching 5 feet in height. The large, bright flowers with dark centers are excellent for adding dramatic height to garden borders or as a backdrop in mixed flower beds.
- Annual
- 85-95 days to maturity
- 8-12 hours of full sun
- Sprouts in 7-14 days
- Seed Depth: 1/2"
- Plant Spacing: 18-24"
- Ideal Temperature: 60-75 F
- Frost Hardy: No
Growing Tips, Tricks and FAQs
Growing Tips
The Tall Orange Sun sunflower grows best in full sun, moderate soil moisture, and rich, well-draining soil. It is especially popular as a cut flower for its bright color and sturdy stems​. Adding compost or organic matter will encourage stronger growth​.
When to Grow
Plant Tall Orange Sun sunflowers after the last frost in spring, when soil temperatures are consistently above 60 F. In cooler climates, starting seeds indoors 2-3 weeks before the last frost can give them a head start. Set them out after the last frost, carefully transplanting them.
How to Sow and Plant
Sow seeds directly into the soil about 1/2 inch deep, spacing them 18-24 inches apart to accommodate their height. These sunflowers typically germinate within 7-14 days if kept in moist soil. For a continuous summer display, you can plant seeds in succession every two weeks until mid-summer.
How to Grow
Tall Orange Sun sunflowers need at least 8-12 hours of direct sunlight daily. Water regularly, especially during dry spells, to keep the soil evenly moist but not waterlogged. Due to their height, these sunflowers might benefit from staking, particularly in windy areas. Apply a balanced fertilizer at planting and once more mid-season for better growth.
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 much space do Tall Orange Sun sunflowers need in the garden?
These sunflowers should be spaced about 18-24 inches apart to make sure they have enough room to grow without competing for nutrients and sunlight.
Are Tall Orange Sun sunflowers drought-tolerant?
While they can tolerate short dry spells, they perform best with consistent watering, especially during hot, dry periods.
Are Tall Orange Sun sunflower seeds edible?
Yes, the seeds are edible and can be harvested when fully mature. However, they are also popular with birds, so netting may be necessary if you want to save seeds for eating.
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