Description
Produced for performance.
- High level of uniformity across entire series, ensuring a consistent and cohesive display at the right time.
- Designed to perform excellent in both spring and fall.
- Growers will appreciate its high programmability and germination power, making viola production efficient and profitable.Tightly branched and non-stretching habit reduces the need for PGRs.
Features
Media
Growing information
Culture Information
Penny™ Pro
Viola
Viola cornuta
Product form: Seed
Containers: Packs, Pints, Quarts, Gallons, Hanging Baskets
Habit: Mounded
Garden Specifications
Garden height: 4–6" (10–15 cm) tall
Garden width: 4–6" (10–15 cm) wide
Exposure: Full Sun
USDA zone: 4
AHS zone: 9–1
Product use: Packs, Containers, Hanging Baskets, Landscapes
Germination
Germination time: 5 days
Media temperature: 65–68 °F (18–20 °C)
Chamber: Optional
Light: Required for germination
Seed cover: Yes
Seeds per cell: 1
Moisture level: 5 - SATURATED: Soil is dark brown and shiny, free water is present at the surface of the soil, water drips freely from the bottom of the tray, and trays are heavy with a visible bend in the middle.
Recommended tray size: 288-cell tray
Young Plant Production
Temperature Day: 68–70 °F (20–21 °C)
Temperature Night: 64–66 °F (18–19 °C)
Average daily temperature: 67 °F (19.5 °C)
Day extension lighting: Beneficial to 14 hours
Light intensity: 500–700 µmol·m−2·s−1
Day length response: Facultative long day
Daily light integral (DLI): 10–12 mol·m−2·d−1
Media pH: 5.5–5.9
Media EC: SME EC: 0.9–1.3 mS/cm, Squeeze or Press Method: 1.4-2.0 mS/cm
Fertilizer: 50–75 ppm N
Moisture level: Media should be allowed to dry between irrigations. Alternate between moisture level 2 and 4. 2 - MEDIUM: Soil is light brown in color, no water can be extracted from soil, and soil will crumble apart. 4 - WET: Soil is dark brown but not shiny, no free water is seen at the surface of the soil, when pressed or squeezed water drips easily, and trays are heavy with a visible bend in the middle.
Pinching: No
Plant growth regulators (PGRs): Spray with B-Nine® WSG at 1,250 to 2,500 ppm if hypocotyl stretch is observed, or if environmental conditions are such that hypocotyl stretch is likely. Apply at the 1- to 2-leaf stage.
Plug grow time: 4-5 weeks in a 288-cell tray
Finishing
Temperature Day: 64–66 °F (18–19 °C)
Temperature Night: 64–66 °F (18–19 °C)
Average daily temperature: 65 °F (18.5 °C)
Day extension lighting: Beneficial to 14 hours
Light intensity: 800–1,200 µmol·m−2·s−1
Day length response: Facultative long day
Daily light integral (DLI): 12–14 mol·m−2·d−1
Transplanting: Transplant directly into the finished container. Place the rooting media slightly below the level of media in the container. Make sure the root ball is covered and that the plug is situated in the center of the pot.
Media pH: 5.5–5.9
Media EC: SME EC: 0.9–1.3 mS/cm, PourThru EC: 1.4–2.0 mS/cm
Fertilizer: 75–125 ppm N
Pinching: No. Pinching is not recommended or needed.
Plant growth regulators (PGRs): Usually not required if growing cool. If conditions are warmer or darker than ideal, spray with B-Nine® WSG at 2,500–5,000 ppm.
Tech tip: Keep media pH below 5.8 to help avoid Thielaviopsis infections. Under hot temperatures provide lower light levels to reduce heat stress. Also, if very frequent irrigation occurs due to high temperatures, apply a supplemental feed of Solubor® or borax to avoid boron deficiency.
Moisture level: Media should be allowed to dry between irrigations. Alternate between moisture level 2 and 4. 2 - MEDIUM: Soil is light brown in color, no water can be extracted from soil, and soil will crumble apart. 4 - WET: Soil is dark brown but not shiny, no free water is seen at the surface of the soil, when pressed or squeezed water drips easily, and trays are heavy with a visible bend in the middle.
Common pests: Aphids, Thrips
Common diseases: Alternaria, Downy mildew, Thielaviopsis, Cercospora, Botrytis
Scheduling
| Size | Crop Time | Plants Per Pot |
|---|---|---|
| Packs | 4–5 weeks | 1 ppp |
| Large Packs | 5–6 weeks | 1–2 ppp |
| 1.0 pint (4 inch) | 5–6 weeks | 1–2 ppp |
| 1.0 quart (4.5 to 5 inch) | 5–6 weeks | 1–2 ppp |
| 1.25 to 2.5 quart (5.5 to 6.5 inch, trade gallon) | 6–7 weeks | 3 ppp |
| 1.5 gallon hanging basket (10 inch basket) | 7–9 weeks | 5–7 ppp |
Estimated finish crop time is from transplant of a 288-cell tray and finished at an average daily temperature (ADT) of 65 °F (18.
Example crop schedule for a pack
| Weeks From Transplant | Description |
|---|---|
| 1 week | Drench with preventive fungicide |
| 2 weeks | Spray with B-Nine® WSG at 2,500–5,000 ppm, if needed |
| 5 weeks | Finish |
Frequently asked questions
You can buy Syngenta Flowers' products through authorized distributors and brokers. Visit the Distributors section of our website to find a supplier near you.
No, Syngenta Flowers does not sell directly to consumers or growers. Our products are available through authorized distributors and brokers. Please refer to our Where to Buy page for more information.
You can stay informed by visiting the News section on our website, which features updates on new products, partnerships, and industry recognitions. You can also, sign up for our e-mail newsletters for the latest insights on new varieties, tech tips, and more!
Yes, we offer a Technical Document Library with culture guides, sell sheets, white papers, technical articles, and videos to support growers. We have a Grower Success Guide that serves as a fast and easy reference tool for all Annuals and perennials. And if you still need help, contact your broker rep directly, and they will resolve or direct you to the correct contact.
Grower Success Guide
Look for our flowers in garden centers across the country. Many of our seeds are available to consumers from seed packet companies online.
Growers, retailers, agencies, and brokers - can access images through the Trinity Image Library. The library link is conveniently located in the footer of every page.
Yes, during transport, plants experience a lot of stress and when plants are stressed they can release ethylene. Higher temperatures, enclosed spaces, and damage to the plants increase the ethylene concentrations in the shipping environment.
Resources
Protect your Ethylene-Sensitive Crops
All our product catalogs are available digitally on our website's catalog page. While we maintain limited printed versions, we primarily offer digital catalogs to support environmental sustainability.
For the most current product information, we recommend checking our website directly as product details may change more frequently than catalog updates.
You can find our videos across multiple platforms:
- YouTube: Subscribe to our Syngenta Flowers channel for growing tips, product showcases, and educational content
- Instagram: Follow us for quick video updates and stories
- LinkedIn: Connect with us for professional insights and industry news
- Document Library: Access our technical videos and product demonstrations
For the most comprehensive video collection, visit our YouTube channel.