SproutSmart
SproutSmart™ Intelligent Garden Sowing

Swiss Giants Mixed

Family: Violaceae Flower
Zone 6b Save Garden

Planting Schedule

Add Swiss Giants Mixed to your garden to build a schedule and get reminders.

Velvety pansy faces bloom in a grand, garden-filling mix—each flower a velour-like blend of bold color and crisp, painterly markings.

Swiss Giants Mixed delivers large, showy blooms with a slightly ruffled, soft-edged texture that looks luminous in cool weather and holds its charm through the season. Ideal for beds and borders, it’s a standout ornamental for creating long-lasting color drifts and striking containers that thrive when temperatures stay mild.

Light: Part SunMaturity: 75 DaysHabit: Rosette

Botanical illustration of Swiss Giants Mixed

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

MilestoneDate
Start IndoorsMar 14th
Last FrostApr 25th
Transplant / Sow OutdoorsApr 25th
Harvest BeginsJul 9th
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity75
Sun RequirementsPart SunPartial sun
Growth HabitRosette
Support NeededNone
Planting DepthSurface
Germination Temp (°F)65
Min Soil Temp (°F)35
Min Night Temp (°F)28
Harden Off (days)6

Frequently Asked Questions

What pest or disease most commonly affects Viola × wittrockiana (Swiss Giants Mixed), and how can I stop it?
Watch for gray mold (Botrytis) and powdery mildew, which show up as fuzzy gray growth or a white powdery coating on leaves and flowers—especially in cool, damp weather. Improve airflow by spacing plants and removing badly affected foliage, then water at the soil line (not the flowers) to keep the crown dry. If the disease is spreading, use a labeled fungicide appropriate for violets and repeat according to the label schedule.
How often should I water Viola × wittrockiana during the main growing phase?
Keep the soil evenly moist but not soggy from establishment through active growth; water when the top 1 inch of soil feels dry. Aim for consistent moisture, because violets that dry out too much tend to wilt and flower less, while constantly wet soil raises the risk of crown rot and Botrytis. In part sun, this often means watering about 1–2 times per week depending on rainfall and container size.
How do I know when Swiss Giants Mixed (Viola × wittrockiana) is ready to harvest?
Harvest for use as cut flowers when blooms are fully colored and the petals are open, typically around 70–80 days after sowing. Look for sturdy stems and flowers that have not started to collapse or turn brown at the edges. For best continued blooming, cut the blooms with a short stem before seed pods form, leaving the plants to keep producing.

Today's Conditions

Outdoor planting for Swiss Giants Mixed in Zone 6b typically begins around 2026-04-25. Wait until soil reaches at least 35°F before transplanting Swiss Giants Mixed.

Garden Alerts

In Zone 6b, the average last spring frost is around April 25. Watch soil temperature before transplanting Swiss Giants Mixed.

Today's Conditions

Outdoor planting for Swiss Giants Mixed in Zone 6b typically begins around 2026-04-25. Wait until soil reaches at least 35°F before transplanting Swiss Giants Mixed.

Garden Alerts

In Zone 6b, the average last spring frost is around April 25. Watch soil temperature before transplanting Swiss Giants Mixed.

Sowing Tips

Transplant Conditions

Wait until soil reaches 35°F and nights stay above 28°F before moving outdoors. Harden off for 6 days first.

Expert Note

For best blooms, keep plants in cool weather (aim for gentle morning sun) and avoid heat stress after transplanting.