Pair of Double Sunking Sunflowers on a white background.
A field of blooming Double Sunking Sunflowers.
Closeup of a Double Sunking Sunflowers and seedhead.
Four Double Sunking Sunflowers on a wooden table.
Sunflower Seeds, Double Sunking
Pair of Double Sunking Sunflowers on a white background.
A field of blooming Double Sunking Sunflowers.
Closeup of a Double Sunking Sunflowers and seedhead.
Four Double Sunking Sunflowers on a wooden table.
Sunflower Seeds, Double Sunking

Sunflower Seeds,
Double Sunking

4.732 ReviewsSKU: #FL730
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Min. 35 seeds

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Description

(Helianthus annuus). A super cheerful, fully double sunflower that is top choice for arrangements! It reaches 6 feet tall with plush, soft, fluffy golden heads. Extra- long vase life and lower pollen count make this a superb choice for cutting gardens and floral design.

Growing Tips: Double Sunking sunflowers are a tall variety that grows best in full sun and well-drainng soil. These sunflowers are fairly low-maintenance and drought-tolerant once established, but consistent watering during dry periods will enhance their growth and flower production. Avoid soggy soil, as this can cause root issues.

Plant Details

Botanical Name
Helianthus annuus
Life Cycle
Annual
Sun Requirement
8–12 hr.
Days to Germinate
7–14
Days to Maturity
80–100
Planting Depth
½ in.
Plant Spacing
18–24 in.
Ideal Temperature
65–75°F
Frost Hardy
No

Growing Guide

When to Grow

Sow the seeds directly outdoors after the last frost in spring, when soil temperatures are at least 50-60 F. You can also start the seeds indoors 2-3 weeks before the last frost and carefully transplant them once the seedlings are hardened off​. 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 about 1/2 inch deep and space them 18-24 inches apart. Make sure that the soil is well-prepared by loosening it and incorporating compost to improve drainage and fertility. If growing in rows, leave around 30 inches between rows to allow for good air circulation.

How to Grow

Double Sunking sunflowers will bloom within 80-100 days from planting. Regular watering is important, especially during hot weather, but avoid overwatering. Taller plants may require staking to support their heavy blooms, and adding mulch will help retain moisture and control weeds.

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 long do Double Sunking sunflowers take to mature?

It takes around 80-100 days depending on growing conditions.

Can I grow Double Sunking sunflowers in containers?

It's challenging to grow these sunflowers in containers due to their height. They are better suited for garden beds.

Do Double Sunking sunflowers attract pollinators?

Not especially. This is a low-pollen double bred for vase life and clean arrangements, so single-flowered, pollen-bearing sunflowers are the better choice if feeding bees is the goal.

Browse our full range of sunflower seeds.

Customer reviews

4.7 / 5 32 Reviews

What gardeners are saying

  • Fluffy double blooms: Dense, fuzzy golden heads like a Van Gogh painting.

  • Many blooms per plant: Up to ten heads on sturdy five to seven foot stalks.

  • Long vase life: Cut stems hold for weeks with little pollen drop.

  • Bees love them: Bumblebees and butterflies crowd the flowers.

  • Heads up: Some find them slow to start and later than other sunflowers.

More to grow!
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