Starburst™ Greenburst DMR
(F1) Sunflower Seed
Product ID: 1954
New! Early blooming, semidouble flowers.
Golden-yellow petals surround green centers. 4–6" blooms on 12–
24" stems. Downy mildew-resistant plants have a sturdy, branching habit. Pollenless. NOTE: Downy mildew in sunflowers persists in infected soils and is especially problematic in cool, wet soils. Symptoms include damping-off, stunted plants, yellowing leaves, and the presence of downy, white mildew on the undersides of the leaves. Ht. 60–72". Avg. 800 seeds/oz. Packet: 50 seeds.
24" stems. Downy mildew-resistant plants have a sturdy, branching habit. Pollenless. NOTE: Downy mildew in sunflowers persists in infected soils and is especially problematic in cool, wet soils. Symptoms include damping-off, stunted plants, yellowing leaves, and the presence of downy, white mildew on the undersides of the leaves. Ht. 60–72". Avg. 800 seeds/oz. Packet: 50 seeds.
https://www.johnnyseeds.com/flowers/sunflowers/tall-sunflowers/starburst-greenburst-dmr-f1-sunflower-seed-1954.11.html
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Quantity
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DAYS TO GERMINATION: 7-14 days at 70-75°F (21-24°C)
SOWING: Direct seed (recommended) - After last frost, sow ½" deep. Transplant - Sow into 72 to 50-cell flats 2-3 weeks prior to planting out. Plants dislike root disturbance but sowing indoors and then transplanting the first crop outdoors can be a successful way to get first-early sunflowers. Pinching branching varieties is recommended to encourage branching and longer stems. Succession-sow every 2-3 weeks and/or plant multiple varieties for continued harvest.
LIGHT PREFERENCE: Sun.
PLANT HEIGHT: Varies.
PLANT SPACING: 18-24".
HARDINESS ZONES: Annual.
HARVEST: Flowers can be harvested tight, when color first shows, or when almost completely open, depending on your market and preferred use. Dried - Flowers are completely open. Hang or use silica gel.
SOIL REQUIREMENTS: Light, well-drained soil. Excessive nitrogen may cause plants to grow too vigorously with abnormal flower shapes.
USES: Excellent cut flower. Single stem sunflowers can make a beautiful and reliable display in the garden but please note that they will only provide one bloom form each plant.
NOTES: Flower size and stem diameter are controlled by plant spacing, temperature, soil type, and day length. For early and late season production, select varieties that are day-length neutral or are noted as suitable for flowering under short days.
SOWING: Direct seed (recommended) - After last frost, sow ½" deep. Transplant - Sow into 72 to 50-cell flats 2-3 weeks prior to planting out. Plants dislike root disturbance but sowing indoors and then transplanting the first crop outdoors can be a successful way to get first-early sunflowers. Pinching branching varieties is recommended to encourage branching and longer stems. Succession-sow every 2-3 weeks and/or plant multiple varieties for continued harvest.
LIGHT PREFERENCE: Sun.
PLANT HEIGHT: Varies.
PLANT SPACING: 18-24".
HARDINESS ZONES: Annual.
HARVEST: Flowers can be harvested tight, when color first shows, or when almost completely open, depending on your market and preferred use. Dried - Flowers are completely open. Hang or use silica gel.
SOIL REQUIREMENTS: Light, well-drained soil. Excessive nitrogen may cause plants to grow too vigorously with abnormal flower shapes.
USES: Excellent cut flower. Single stem sunflowers can make a beautiful and reliable display in the garden but please note that they will only provide one bloom form each plant.
NOTES: Flower size and stem diameter are controlled by plant spacing, temperature, soil type, and day length. For early and late season production, select varieties that are day-length neutral or are noted as suitable for flowering under short days.
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Quick Facts
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Latin Name
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Helianthus annuus
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Days To Maturity
Average number of days from seeding date to harvest, within a specific crop group. If a transplanted crop: average number of days from transplant date. Not sure if crop is direct-seeded or transplanted? Check the Growing Information box for details. If crop can be both direct-seeded or transplanted, days to maturity refers to direct seeding. Days to maturity for all flowers and herbs is calculated from seeding date. -
60 - 65 Days
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Life Cycle
Plants can be Annuals (single growing season), Perennials (grow year after year), Tender Perennials (grow year after year in warmer climates; and in some cases when given special protection in colder climates), or Biennials (require two years to mature). -
Annual
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Hybrid Status
Hybrid: The offspring of a cross between two or more distinct parent lines, usually of same species, and selected for improved traits.
Open-pollinated: A non-hybrid variety that can reproduce itself in kind, demonstrating relatively stable traits from one generation to the next. -
Hybrid (F1)
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Product Features
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Use for Cut Flowers and Bouquets
- Variety good for fresh cut-flower displays.
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