Alcea rosea 'Chater's Double White', commonly known as Hollyhock, is a classic biennial or short-lived perennial flowering plant originating from southwestern China that has been cultivated in gardens since the 15th century. This variety produces large, fully double white pompom-like flowers on tall, elegant spikes reaching 6-8 feet in height. Germination is straightforward and reliable, typically occurring within 10-28 days when seeds are provided adequate light, consistent moisture, and appropriate temperatures.
Before sowing
No pre-treatment needed — sow directly.
Sowing
What to expect
Tips
Sow seeds indoors 6-8 weeks before the last frost date for first-year flowering, or directly outdoors in late spring/early summer for blooms the following year. Press seeds lightly into soil surface as light is essential for germination—do not cover completely. Maintain temperatures of 60-70°F (15-21°C) and keep substrate consistently moist until germination. Provide bright light and good air circulation. Once seedlings have true leaves, transplant into individual pots or cells. Space plants 18-24 inches apart when planting outdoors. Ensure good drainage to prevent fungal issues, particularly rust. These hardy plants thrive in full sun with well-drained, fertile soil and easily self-seed in subsequent years.
Sources: Outside Pride, Gardenia.net, Premier Seeds Direct, Ferri Seeds, Fontana Seeds, Everwilde Farms, West Coast Seeds, North Carolina Extension, Missouri Botanical Garden, Wikipedia, Royal Horticultural Society, American Gardener
