Oklahoma Formula Mix Improved
Zinnia Seed
Product ID: 1747
Bright colors, excellent vase life, and low susceptibility to powdery mildew.
This improved mix is an essential component of any cut-flower offering. Prolific, 1 1/2–2 1/2" double and semidouble blooms. Ht. 30–40". Avg. 4,100 seeds/oz. Packet: 50 seeds.
https://www.johnnyseeds.com/flowers/zinnias/oklahoma-series/oklahoma-formula-mix-improved-zinnia-seed-1747.11.html
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DAYS TO GERMINATION: 3-5 days at 80-85°F (27-29°C)
SOWING: Transplant (recommended) - Sow into 72-cell flats 4 weeks before last frost. Cover seeds. A heat mat will help maintain an accurate temperature. Lower temperatures will result in slower germination: 5-7 days at 70-75°F (21-24°C). Harden-off and transplant out after last frost. Do not allow plants to become root bound and avoid disturbing roots; transplant shock or other stress events may cause double-flowering varieties to produce single blooms for a period following stress. Direct seed - After last frost, sow 1/4" deep. Succession-sow/plant every two weeks for prolonged yields of high-quality stems. Pinching of initial bud or bloom and subsequent deadheading is recommended to encourage strong branching and bloom production.
LIGHT PREFERENCE: Sun.
PLANT HEIGHT: Varies. No support is necessary.
PLANT SPACING: 9-12".
HARDINESS ZONES: Annual.
HARVEST: Before completely open. Stem is firm from point of cut to just below the bloom.
SOIL REQUIREMENTS: Fertile soil rich in organic matter. pH: 6.3-6.8 preferred.
USES: Taller varieties make excellent cut flowers. Beds, borders, and mass plantings.
SCIENTIFIC NAME: Zinnia spp.
SOWING: Transplant (recommended) - Sow into 72-cell flats 4 weeks before last frost. Cover seeds. A heat mat will help maintain an accurate temperature. Lower temperatures will result in slower germination: 5-7 days at 70-75°F (21-24°C). Harden-off and transplant out after last frost. Do not allow plants to become root bound and avoid disturbing roots; transplant shock or other stress events may cause double-flowering varieties to produce single blooms for a period following stress. Direct seed - After last frost, sow 1/4" deep. Succession-sow/plant every two weeks for prolonged yields of high-quality stems. Pinching of initial bud or bloom and subsequent deadheading is recommended to encourage strong branching and bloom production.
LIGHT PREFERENCE: Sun.
PLANT HEIGHT: Varies. No support is necessary.
PLANT SPACING: 9-12".
HARDINESS ZONES: Annual.
HARVEST: Before completely open. Stem is firm from point of cut to just below the bloom.
SOIL REQUIREMENTS: Fertile soil rich in organic matter. pH: 6.3-6.8 preferred.
USES: Taller varieties make excellent cut flowers. Beds, borders, and mass plantings.
SCIENTIFIC NAME: Zinnia spp.
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Quick Facts
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Latin Name
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Zinnia elegans
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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. -
75 - 90 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. -
Open Pollinated
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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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Grows Well in Containers
- Variety does well when grown in a container.
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