Sunflower ‘Greenburst’
Helianthus annuus
Description
I adore this cheerful double, early-blooming variety with its fluffy yellow petals around a clear, bright green center. Flowering just 2 months from seeding, this cutie can be succession-sown from early spring through midsummer for flowers from early summer through late autumn. ‘Greenburst’ is pollenless and won’t stain. We grow loads of this variety every year.
Details
Plant type: annual
Height: 60 to 72 in
Site: full sun
Days to maturity: 60 to 70 days
Plant spacing: 18 to 24 in
Pinch: when 18 in tall
Height: 60 to 72 in
Site: full sun
Days to maturity: 60 to 70 days
Plant spacing: 18 to 24 in
Pinch: when 18 in tall
Seed Sowing & Growing Notes
Sunflowers can be direct-seeded into the garden after all danger of frost has passed or started indoors in trays and transplanted out after 2 to 3 weeks.
Harvesting/Vase Life
Harvest as soon as the first petals on a bloom start to lift off the central disk. Strip three-quarters of the leaves from the stem. Expect a vase life of 7 to 10 days.
Details
Description
I adore this cheerful double, early-blooming variety with its fluffy yellow petals around a clear, bright green center. Flowering just 2 months from seeding, this cutie can be succession-sown from early spring through midsummer for flowers from early summer through late autumn. ‘Greenburst’ is pollenless and won’t stain. We grow loads of this variety every year.
Details
Plant type: annual
Height: 60 to 72 in
Site: full sun
Days to maturity: 60 to 70 days
Plant spacing: 18 to 24 in
Pinch: when 18 in tall
Height: 60 to 72 in
Site: full sun
Days to maturity: 60 to 70 days
Plant spacing: 18 to 24 in
Pinch: when 18 in tall
Seed Sowing & Growing Notes
Sunflowers can be direct-seeded into the garden after all danger of frost has passed or started indoors in trays and transplanted out after 2 to 3 weeks.
Harvesting/Vase Life
Harvest as soon as the first petals on a bloom start to lift off the central disk. Strip three-quarters of the leaves from the stem. Expect a vase life of 7 to 10 days.
Sources
How to Grow
Sources
How to Grow
Seed-Saving Mini Course
Learn how to save seed from zinnia, dahlia, and celosia
In our upcoming free, three-part video series, you’ll learn everything you need to know to save seeds on a home scale, including how plants are pollinated and isolation techniques to ensure varieties come back true, how to tell when plants are ready to pick and how to harvest the seeds, and how to properly dry, clean, and store seeds long term.
