Viola Swiss Giant RED FLOWERS SEED, Viola Swiss giant

Viola × wittrockiana 'Swiss Giant Alpenglow' is one of the largest pansy flowers available — blooms reach a dramatic 3 inches across in striking cardinal red with a bold black blotch at the center. No garden is complete without it. An exceptional cool-season performer, Swiss Giant Alpenglow thrives in spring and fall and in mild climates will bloom all fall, through winter, and into spring. Grown easily from seed, this heirloom Swiss giant pansy is a beloved classic that delivers royal color in beds, containers, window boxes, and borders.

Plant Highlights

• Cardinal red blooms with bold black blotch — up to 3 inches across
• One of the largest pansy flowers available; heirloom Swiss Giant series
• Cool-season performer — blooms spring through fall; year-round in mild climates
• Excellent in beds, containers, window boxes, baskets, and between spring bulbs
• Deadhead regularly to prolong the flowering season

Growing Guide

Starting indoors: Sow 6–8 weeks before planting out. Sow into trays with quality starter mix and cover lightly with peat moss. Shade trays as darkness aids germination. Keep moist. Once seedlings emerge, move to a cool, bright location.

Harden off: Gradually acclimate plants before planting outdoors. Pansies tolerate light frost and can be set out up to a month before the last frost date.

Timing for fall: Set out established plants 3–4 weeks before the first hard frost for best rooting and fall bloom.

Site and soil: Full sun to partial shade; well-drained soil, pH 5.8–6.8. Space 8 inches apart. Deadhead spent blooms to keep plants tidy and producing. Twelve weeks from seeding to bloom.

Planting Specs

• Type: Perennial (typically grown as annual/biennial)
• USDA Zones: 6–9
• Height: 6–8 inches
• Bloom size: Up to 3 inches across
• Bloom season: Spring through fall (year-round in mild climates)
• Bloom color: Cardinal red with black blotch
• Light: Full sun to partial shade
• Soil: Well-drained, pH 5.8–6.8
• Germ temp: 68°F | Avg. germ time: 14–21 days
• Planting depth: Cover thinly — no more than the thickness of the seed
• Sowing rate: 3–4 seeds per plant
• Spacing: 8 inches