How to Sow and Plant
+
Sow giant viola seeds indoors from February to March in a seedbed under glass, keeping the soil evenly moist at around 20°C. Lightly press the seeds without covering them, then cover with a box or dark cloth to encourage germination. Once seedlings emerge, provide light and cooler temperatures. Transplant outdoors in April or May. For biennial cultivation, sow outdoors from mid-July to mid-August in a seedbed and transplant in autumn. This method ensures healthy establishment for vibrant blooms in spring and early summer.
Giant Viola 'Swiss Giants Celestial' thrives in shaded or partially shaded locations, making it ideal for spring borders and ground cover. Maintain evenly moist soil without waterlogging to support healthy growth. These violas prefer cooler temperatures after emergence to encourage vibrant blooms. Deadheading spent flowers promotes continuous flowering from April to June. Combine with other perennials for a lush garden display, and protect plants from extreme heat to extend their blooming period. Their compact 25 cm height fits well in mixed beds or containers, adding delicate lilac hues to your garden.
For optimal growth, start sowing giant viola seeds indoors between February and March in a seedbed under glass, then transplant in April or May. Alternatively, sow outdoors from July to August for biennial cultivation. Keep the soil evenly moist at around 20°C, cover seeds lightly, and protect them from light until germination. After emergence, provide cooler temperatures and light to encourage strong seedlings. These violas thrive in shaded spots and make an excellent ground cover, combining beautifully with other perennials to brighten spring borders with their large lilac blooms.
What are the key features of the Giant Viola 'Swiss Giants Celestial'?
This variety features large flowers with delicate lilac petals, growing up to 25 cm tall. It is shade tolerant and works well as a perennial ground cover or in spring borders, offering vibrant blooms from April through June.
When is the best time to sow Giant Viola 'Swiss Giants Celestial' seeds?
For indoor sowing, plant seeds from February to March under glass at about 20°C, then transplant outdoors in April or May. For biennial cultivation, sow outdoors from mid-July to mid-August and transplant in autumn.
What growing conditions does this Giant Viola prefer?
It thrives in shaded or partially shaded locations with evenly moist soil that is not waterlogged. Cooler temperatures after seedlings emerge encourage vibrant flowering. Protecting plants from extreme heat helps extend the blooming period.
How can I encourage longer blooming for Giant Viola 'Swiss Giants Celestial'?
Regular deadheading of spent flowers promotes continuous blooming from April through June, enhancing the plant's floral display.
Is Giant Viola 'Swiss Giants Celestial' suitable for containers or mixed beds?
Yes, its compact height of around 25 cm makes it ideal for mixed flower beds or containers, adding soft lilac hues and visual interest to your garden.
Can these violas be used for ground cover in shaded areas?
Absolutely, they serve as excellent perennial ground cover in shaded spots, combining aesthetic appeal with practical coverage for garden borders and beds.
