Birthday Bash ™ Cotton Candy Sunfinity ® Double Yellow
Helianthus Sunfinity ® Double Culture Guide Helianthus annuus Product form: Vegetative Containers: 2.5–3 quart, 1.5 gallon and larger patio containers Habit: Upright Garden Specifications
Propagation of Unrooted Cuttings
Root emergence: 6–8 days Rooting hormone: Recommended. An overhead heavy spray to the cuttings (penetrating the rooting media) using water-soluble K-IBA at 250–300 ppm 24–48 hours after sticking can hasten rooting. Bottom heat temp: 70–74 °F (21–23 °C) for the first two weeks. After roots are well developed, temperatures can be lowered to hold and tone the cuttings. Misting: Mist schedules vary depending on light and temperature conditions. Apply just enough moisture to rehydrate the cuttings and keep them from wilting. Cuttings should be hydrated and in a non-wilted stage within 24 hours after sticking. Cuttings that continue to wilt heavily after 24 hours will callus unevenly and will be delayed in rooting. CapSil ® (spray adjuvant) can be sprayed on the cuttings at a rate of 2–4 oz/100 gal within 1–2 days after sticking to help in rehydration of the cuttings. Misting should be significantly reduced after 3–4 days and after cuttings become fully hydrated. Applying too much mist early on can lead to significant Botrytis infections on vegetative sunflowers. Recommended tray size: 105-cell tray (30 mm) or larger. Propagation timing: 3–3.5 weeks for a 105-cell tray; add more rooting time for significantly larger tray sizes. Temperature
Garden Height: 28–36" (71–91 cm) tall Garden Width: 24–28" (61–71 cm) wide
Exposure: Full Sun USDA zone: 4–11 AHS zone: 12–1
Day: 72–74 °F (22–23 °C) Night: 70–72 °F (21–22 °C) Lighting Day extension lighting: Necessary to 14 hours.
Sunfinity ® Double Yellow
Light intensity: Provide 200–250 µmol·m -2 ·s -1 for the first two weeks after sticking or until root development occurs. Light levels can be increased up to 600 µmol·m -2 ·s -1 as rooting increases and the cutting matures. Day length response: Facultative long day Daily light integral (DLI): 4–6 mol·m -2 ·d -1 for the first two weeks after sticking or until root development occurs. DLI can be increased to greater than 12 mol·m -2 ·d -1 after root formation. Media pH: 5.8–6.2 Media EC: SME EC: 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm Fertilizer: Begin fertilization at 100 ppm nitrogen when roots become visible. Rates can be increased up to 200 ppm nitrogen after roots become well developed. Use primarily Cal-Mag ® (calcium nitrate + magnesium nitrate) fertilizers in propagation to prevent unwanted stretch. Pinching: Not recommended
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