Colossus Formula Mix, also known as Viola x wittrockiana, is native to Europe with this cultivar developed by Syngenta for superior heat and humidity tolerance. This annual flowering plant has a dense mounded habit of 4-5" tall and 6-8" wide. Red blotched flowers bloom from spring through fall in full sun to full shade, providing attractive color along rock walls and borders or in containers or mass plantings. Colossus Formula Mix is low-maintenance, long-lasting, and pleasantly aromatic. Pair with snapdragon and viola for a stunning container or landscape bed, and enjoy pansy's edible flowers as a garnish on summertime desserts. Plant Mix alongside Pansy Colossus Fire for a stunning show of color.
Colossus Formula Mix Selling Tips
Sell Colossus Formula Mix to customers looking for a colorful annual for walkways, containers, or mass plantings. Colossus offers many benefits, from a long bloom season to large flowers and heat tolerance. This pansy has a dense mounding habit of 4-5" tall, compact for border edges and containers. Flowers reach up to 4" in diameter, blooming from spring through fall. Pansies flourish in full sun or partial shade with little more than regular water.
Coach Your Customer
1. Space plants 6-8" apart in well-drained rich soil with all leaves above the soil.
2. Water regularly, but don't allow the soil to be soggy.
General Growing Tips For Your Seedling Tray
For best results with Colossus Formula Mix, plant one rooted plug per cell or 4-inch container or 5-6 per 10-inch basket. Use well-drained rich soil with a pH of 5.5-5.8, an EC of SME 0.9-1.3 mS/cm or Pourthru 1.4-2.0 mS/cm, and light feed (75-125 ppm N). Maintain a temperature of 64-66 degrees with 14 hours of daylight (4,000-6,000 foot candles). This plant doesn't require pinching. When grown cool with plenty of light, it doesn't require PGRs. In warm dark conditions, B-Nine at 2,500-5,000 ppm prevents stretching. You may see aphids and thrips. Pansies can be prone to fungus, mold, and root rot.
Flowering
Flowers 4" in diameter bloom from spring through fall. Colors are mixed, including red, white, yellow, rose, and blue with a dark blotch.
Pinching
This plant doesn't require pinching.
Spacing
Space containers for adequate airflow around the base of each plant and to allow sunlight to penetrate to the soil level. Grow flats in full sun and allow soil to dry between waterings.
Height Control
This plant doesn't require PGRs when grown in ideal temperature and light conditions. However, in warm or dark conditions, use a spray of B-Nine at 2,500-5,000 ppm.
Pests
You may see aphids or thrips.
Disease
Pansies can be prone to fungus, mold, root rot, and downy mildew. All these infections can be discouraged with preventative care. Treat botrytis with Medallion and Banrot as a drench according to the label instructions.
1. Water at the base of each plant in the morning and allow the soil to dry out during the day.
2. Provide adequate airflow in the greenhouse, including using fans.
3. Space containers to allow sunlight to penetrate to the soil level.
4. Maintain clean conditions in your greenhouse, especially when transplanting and fertilizing.
Planting Colossus Formula Mix Liners
We recommend planting one rooted plug per cell or 4-inch container or 5-6 plugs per 10-inch basket. Use well-drained soil and completely bury the ellepot in the center of the pot.
Rooted Cuttings
Cuttings vary in size between different plant families. These rooted starter plants will arrive ready to be transplanted in to your final container. If they are to be used in a landscape application, you will need to establish them in a 4 inch pot or an 1801 before planting outside.
Pansy Colossus Formula Mix Quick Reference Guide
4 Inch crop time
5-7 Weeks
10 Inch crop time
6-8 Weeks
Bloom Period
Fall, Spring
Color
Red, Blue, White, Yellow,
Habit
Mounding
Height
4-5 Inches
Light
Full Sun, Partial Shade, Partial Sun
Minimum Temp
55
Water Needs
Moderate
Patented Plant
No
Current Availability
Current Availability
06-23-2025 (Week 26)
0
06-30-2025 (Week 27)
0
07-07-2025 (Week 28)
0
07-14-2025 (Week 29)
0
07-21-2025 (Week 30)
0
07-28-2025 (Week 31)
3,500
08-04-2025 (Week 32)
3,250
08-11-2025 (Week 33)
3,250
08-18-2025 (Week 34)
3,500
08-25-2025 (Week 35)
3,500
09-01-2025 (Week 36)
3,500
09-08-2025 (Week 37)
3,500
09-15-2025 (Week 38)
3,500
09-22-2025 (Week 39)
3,500
09-29-2025 (Week 40)
3,500
10-06-2025 (Week 41)
3,500
10-13-2025 (Week 42)
3,500
10-20-2025 (Week 43)
3,500
10-27-2025 (Week 44)
3,500
11-03-2025 (Week 45)
3,500
11-10-2025 (Week 46)
3,500
11-17-2025 (Week 47)
3,500
11-24-2025 (Week 48)
3,500
12-01-2025 (Week 49)
3,500
12-08-2025 (Week 50)
3,500
12-15-2025 (Week 51)
3,500
12-22-2025 (Week 52)
3,500
12-29-2025 (Week 01)
3,500
01-05-2026 (Week 02)
3,500
01-12-2026 (Week 03)
3,500
01-19-2026 (Week 04)
3,500
01-26-2026 (Week 05)
3,500
02-02-2026 (Week 06)
3,500
02-09-2026 (Week 07)
0
02-16-2026 (Week 08)
0
02-23-2026 (Week 09)
0
03-02-2026 (Week 10)
0
03-09-2026 (Week 11)
0
03-16-2026 (Week 12)
0
Colossus Formula Mix, also known as Viola x wittrockiana, is native to Europe with this cultivar developed by Syngenta for superior heat and humidity tolerance. This annual flowering plant has a dense mounded habit of 4-5" tall and 6-8" wide. Red blotched flowers bloom from spring through fall in full sun to full shade, providing attractive color along rock walls and borders or in containers or mass plantings. Colossus Formula Mix is low-maintenance, long-lasting, and pleasantly aromatic. Pair with snapdragon and viola for a stunning container or landscape bed, and enjoy pansy's edible flowers as a garnish on summertime desserts. Plant Mix alongside Pansy Colossus Fire for a stunning show of color.
Colossus Formula Mix Selling Tips
Sell Colossus Formula Mix to customers looking for a colorful annual for walkways, containers, or mass plantings. Colossus offers many benefits, from a long bloom season to large flowers and heat tolerance. This pansy has a dense mounding habit of 4-5" tall, compact for border edges and containers. Flowers reach up to 4" in diameter, blooming from spring through fall. Pansies flourish in full sun or partial shade with little more than regular water.
Coach Your Customer
1. Space plants 6-8" apart in well-drained rich soil with all leaves above the soil.
2. Water regularly, but don't allow the soil to be soggy.
General Growing Tips For Your Seedling Tray
For best results with Colossus Formula Mix, plant one rooted plug per cell or 4-inch container or 5-6 per 10-inch basket. Use well-drained rich soil with a pH of 5.5-5.8, an EC of SME 0.9-1.3 mS/cm or Pourthru 1.4-2.0 mS/cm, and light feed (75-125 ppm N). Maintain a temperature of 64-66 degrees with 14 hours of daylight (4,000-6,000 foot candles). This plant doesn't require pinching. When grown cool with plenty of light, it doesn't require PGRs. In warm dark conditions, B-Nine at 2,500-5,000 ppm prevents stretching. You may see aphids and thrips. Pansies can be prone to fungus, mold, and root rot.
Flowering
Flowers 4" in diameter bloom from spring through fall. Colors are mixed, including red, white, yellow, rose, and blue with a dark blotch.
Pinching
This plant doesn't require pinching.
Spacing
Space containers for adequate airflow around the base of each plant and to allow sunlight to penetrate to the soil level. Grow flats in full sun and allow soil to dry between waterings.
Height Control
This plant doesn't require PGRs when grown in ideal temperature and light conditions. However, in warm or dark conditions, use a spray of B-Nine at 2,500-5,000 ppm.
Pests
You may see aphids or thrips.
Disease
Pansies can be prone to fungus, mold, root rot, and downy mildew. All these infections can be discouraged with preventative care. Treat botrytis with Medallion and Banrot as a drench according to the label instructions.
1. Water at the base of each plant in the morning and allow the soil to dry out during the day.
2. Provide adequate airflow in the greenhouse, including using fans.
3. Space containers to allow sunlight to penetrate to the soil level.
4. Maintain clean conditions in your greenhouse, especially when transplanting and fertilizing.
Planting Colossus Formula Mix Liners
We recommend planting one rooted plug per cell or 4-inch container or 5-6 plugs per 10-inch basket. Use well-drained soil and completely bury the ellepot in the center of the pot.
Rooted Cuttings
Cuttings vary in size between different plant families. These rooted starter plants will arrive ready to be transplanted in to your final container. If they are to be used in a landscape application, you will need to establish them in a 4 inch pot or an 1801 before planting outside.
Pansy Colossus Formula Mix Quick Reference Guide
4 Inch crop time
5-7 Weeks
10 Inch crop time
6-8 Weeks
Bloom Period
Fall, Spring
Color
Red, Blue, White, Yellow,
Habit
Mounding
Height
4-5 Inches
Light
Full Sun, Partial Shade, Partial Sun
Minimum Temp
55
Water Needs
Moderate
Patented Plant
No
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