Close up of a single Astra Gold Sunflower on a white background.
Sunflower Seeds, Astra Gold
Sunflower Seeds, Astra Gold
Astra Gold Sunflowers are arranged on a white background.
Astra Gold Sunflowers are arranged in a glass vase on a white background.
Astra Gold Sunflower blooms and ripe seeds on a blue background.
Close up of a single Astra Gold Sunflower on a white background.
Sunflower Seeds, Astra Gold
Sunflower Seeds, Astra Gold
Astra Gold Sunflowers are arranged on a white background.
Astra Gold Sunflowers are arranged in a glass vase on a white background.
Astra Gold Sunflower blooms and ripe seeds on a blue background.

Sunflower Seeds,
Astra Gold

4.25 ReviewsSKU: #FL738Min. seed count: 15
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Description

(Helianthus annuus). Feathery, shredded petals give this stunner a wild and untamed look, making for a dash of something different in sunflowers. Plants stand 5 to 6 feet tall and about 1 foot wide, with multi branching stems and plenty of heads per plant. We love this easy-to-grow variety for kids' gardens, cutting gardens, beds, borders, and even large containers. A pollinator attractor and lovely native plant.

Growing Tips: Astra Gold sunflowers thrive in full sun, needing at least 6-8 hours of sunlight per day. While they tolerate a range of soils, they perform best in rich soil with moderate soil moisture. Although drought-tolerant once established, regular watering during early growth and flowering periods ensures healthier blooms and stronger plants.

Plant Details

Botanical Name
Helianthus annuus
Life Cycle
Annual
Sun Requirement
8–12 hr.
Days to Germinate
7–14
Days to Maturity
60–70
Planting Depth
½ in.
Plant Spacing
18–24 in.
Ideal Temperature
60–75°F
Frost Hardy
No

When to Grow

Sow Astra Gold sunflower seeds after the last frost in late spring, once the soil has warmed to around 60 F. If you want to start them earlier, sow indoors 2-3 weeks before the last frost and transplant after hardening off. Be sure to time your planting based on your local frost dates to avoid any damage to young plants. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

How to Sow and Plant

Plant seeds directly outdoors at a depth of 1/2 inch, spaced 18-24 inches apart, ensuring they have enough room to spread. Keep the soil moist until germination, which typically occurs in 7-10 days. The ideal germination temperature is 70-75 F.

How to Grow

Astra Gold sunflowers don’t require too much care and bloom within 60-70 days. Water deeply but less frequently for deep root growth. Fertilizer is typically not necessary unless the soil is poor, in which case a balanced fertilizer can be used sparingly.

How to Save Seeds

  • 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 seeds in a cool, dark, dry place.

FAQ

How often should I water Astra Gold sunflowers?

They need regular watering, especially during early growth and flowering. Once established, they are somewhat drought-tolerant but perform best with consistent deep watering. Water them thoroughly when the top inch of soil feels dry.

When will Astra Gold sunflowers bloom?

They typically bloom 60-70 days after planting.

How do I protect my Astra Gold sunflowers from pests?

Common pests include aphids and birds. Neem oil can help with insects, and mesh netting can be used to protect the seeds.

Browse our full range of sunflower seeds.

Customer reviews

4.2 / 5 5 Reviews

What gardeners are saying

  • Compact, branching: Short plants with several flower heads on each.

  • Cut-flower ready: Clusters of blooms, repeat flushes all summer.

  • Unique look: A distinctive sunflower, not a massive one.

  • Heads up: Germination can be patchy; sow extra seed.

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