Pristar Light Blue Campanula

Pristar Campanula Culture Guide Young Production

First year flowering F1 hybrid produces round, TEMPERATURE: uniform laden with and buds for a Day: 62–65 °F (17–18 °C) long-lasting color show. Night: 62–65 °F (17–18 °C) Minimum germination standard: 80% LIGHTING: Product form(s): Raw Recommended day length: Short days (less than 12 Habit: Mounded hours) for bulking Container size: Quarts, gallons Light intensity: 2,000–3,000 foot candles Blooming season: Summer (400–600 micro mols) Vernalization: Not required; First-year flowering Day length response: Obligate long day Daily light integral: Greater than 10 mols/day

Garden Specifications Media pH: 5.8– 6.2 Garden height: 8–12" Media EC: 0.5–1.0 mS/cm Garden width: 6–10" Fertilizer: 50–100 ppm Nitrogen Light: Full to partial sun Pinching: No USDA Hardiness Zone: 3–9 Moisture level: Alternate between a level 4 (wet) and level 3 (medium) from radicle emergence until cotyledon expansion, AHS Heat zone: 9–1 then allow soil to dry back to a level 2 (medium). Product use: Landscape beds, mass plantings, containers Plant growth regulators (PGRs): If needed, spray B-Nine® (daminozide) at 1,500 to 3,750 ppm. Germination Plug grow time: 8–9 weeks in a 288-cell size tray Germination time: 7–10 days Tech Tips: Grow plants under short day conditions (less than 12 hours) to allow sufficient time for young plants to bulk. Media temperature: 65–70 °F (18–21 °C) Chamber: Optional Light: Required for germination Seed cover: None Moisture Level: 4 (wet) day 1–10 Recommended tray size: 288-cell tray or larger per cell: 3–4

TM Pristar White Campanula Finishing Scheduling

TEMPERATURE: Crop time after Day: 60–65 °F (16–18 °C) Container size transplant (wks) Plants per pot Night: 60–65 °F (16–18 °C) 1-quart pots 10–12 1–2 (4.5- to 5-inch pots) Average daily temperature: 60–65 °F (16–18 °C) 1.25- to 2.5-quart pots 10–12 2–3 LIGHTING: (5.5- to 6.5-inch pots, trade gallon) Recommended day length: Greater than 13.5 hours or 4-hour night interruption Estimated finish crop time is from transplant of a 288-cell tray and finished at an average daily temperature (ADT) of 65 °F (18 °C). Light intensity: Greater than 4,500 foot candles (900 micro mols) Day length response: Obligate long day Tech tips: Grow under short days during plug stage and 3–4 weeks in finished production to bulk plants prior to flowering; flowering occurs Daily light integral: Greater than 15 mols/day approximately 6–8 weeks after long day treatments begin. Natural timing is June through July. Vernalization: No Media pH: 5.8–6.2 EXAMPLE CROP SCHEDULE FOR 4-INCH OR Media EC: 1.0–1.5 mS/cm QUART POTS Fertilizer: 150–200 ppm Nitrogen Week 1: Sow 3–4 seed into a 288-cell tray; expect germination in 7–10 days at 65–68 °F (18–20 °C) ADT. Pinching: No Week 2: Lower temperatures to 62–65 °F (17–18 °C) ADT once Moisture level: Alternate between a level 4 (wet) and level 2 (medium). cotyledons have expanded. Allow soil to dry to a level 2 (medium) before irrigating up to a level 4 (wet). Week 4: PGR spray of B-Nine if needed to tone plugs prior to transplanting. Plant growth regulators: If needed, spray applications of Bonzi® (paclobutrazol) at 10–15 ppm, B-Nine at 2,500–3,750 ppm or Cycocel® Week 8: Transplant 1–2 plugs per quart pot and finish at 65 °F (18 °C) (chlormequat chloride) at 750 ppm. PGR applications are more effective if ADT; grow plants at day lengths of 12 hours or less to bulk for 3–4 weeks. applied early in the crop cycle. Week 12: Force flower initiation by providing day lengths greater than 13.5 Pests: Aphids, thrips, whiteflies hours or 4-hour night interruption lighting. Diseases: Botrytis, Pythium, fungal spots Week 14: PGR spray of B-Nine or Bonzi as needed to tone. Week 18–20: Finish

Pristar Deep Blue Campanula

Photos are either the property of Syngenta or used under agreement. © 2017 Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties. Please check with your state or local Extension Service to ensure registration status. Some or all of the varieties may be protected under one or more of the following: Plant Variety Protection, United States Plant Patents, Utility Patents, and/or Plant Breeders’ Rights and may not be propagated or reproduced without authorization. The trademarks displayed or otherwise used herein are the property of their respective owners.

SCP 000-00000-A