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Mirabilis jalapa, or commonly known as Four O’Clock, is a tender perennial that produces an abundance of flowers all summer long. The plants are shrub-like and can reach 18 – 36 inches in height and the same in width.
Four O'Clock is an 18 - 26 vining perennial growing in USDA zones 8 - 10 or as an annual in colder climates.
The trumpet-shaped flowers are brilliant red and can be in clusters or single blooms, and they have a vanilla scent attracting hummingbirds. On sunny days, the flowers open in the late afternoon and wilt by the next morning.
Bloom after bloom is produced all summer long to create a lovely red display.
Sowing Rate: 1 pound per 1,000 square feet or 2 seeds per plant. Start Four O’Clock seed indoors 6 – 8 weeks before the last expected frost date. Press the seed into soil, cover it with ¼ inch of soil and keep the seed moist. With a temperature range of 65 - 75F, germination is usually in 14 days.
Mirabilis jalapa, or commonly known as Four O’Clock, is a tender perennial that produces an abundance of flowers all summer long. The plants are shrub-like and can reach 18 – 36 inches in height and the same in width. The trumpet-shaped flowers are brilliant red and can be in clusters or single blooms, and they have a vanilla scent attracting hummingbirds. On sunny days, the flowers open in the late afternoon and wilt by the next morning. Bloom after bloom is produced all summer long to create a lovely red display. Start Four O’Clock seed indoors 6 – 8 weeks before the last expected frost date. Press the seed into soil, cover it with ¼ inch of soil and keep the seed moist. With a temperature range of 65 - 75F, germination is usually in 14 days. Grow Four O’Clock in full sun to partial shade. It prefers well-drained soil. Space plants 12 – 24 inches apart. In areas with long growing season, Four O’Clock can be directly started outdoors after danger of frost has passed. They have large, carrot-shaped tubers that can be divided in the spring. Caution: do not eat the seeds; they are poisonous.