If it was growing in the ground, use a trowel to dig it out gently. Remove the seedling from its pot gently and crumble the soil from the root ball. The soil where you plant Hollyhocks should be mixed with clay, sand, and plenty of compost. Hollyhock seeds shouldn’t be moved until they have at least 4 leaves and the day temperature is more than 50° degrees Fahrenheit (10° C). However, you may be able to do it successfully if you are careful enough. They have large tap roots making them a challenge to dig up. They’re temperamental plants so transplanting is often discouraged. Hollyhocks are hardy to USDA Hardiness Zone 6.
You will need to apply potassium nitrate and calcium at a rate of 75-100 ppm constant feed.ĭon’t allow the soil to dry out since Hollyhocks need the ground to be evenly moist. Watering and FeedingĪlceas Roseas are heavy feeders and need high maintenance. Germination can take place in up to 8 – 10 days.Īfter this occurs, you need a day temperature of about 65° – 70° degrees Fahrenheit (18° C – 21° C) while the night temperature should be 55° – 60° degrees Fahrenheit (13° C – 16° C). They should plant in large plug cells, and a pH level of 5.8-6.0 should be maintained.įor optimum germination, you need 55° – 60° degrees Fahrenheit (13° C – 16° C). Seeds of the Hollyhock plant need to be sown from March-June in well-drained soil. The plant is tolerant of the cold, but their flowers can become damaged by frost.
#Hollyhock seedlings full#
Hollyhock plants need full sun and cannot grow in the shade.Ī warm sunny location sheltered from the wind is ideal. The large, showy blooms attract hummingbirds, butterflies, and bees. They have numerous stamens, and the stalks grow together. It can have spires of single flowers and double flowers. This species is a hermaphrodite (having both female and male organs). The second year or last year flowers bloom in late summer, seeds form, and flower stalks shoot up. The first year is spent growing foliage and storing energy. Many of the available hollyhock varieties are biennials.ĭepending on the soil and care, it will be annual or a short-lived perennial. The Alcea rosea has a two-year life cycle, known as biennial plants. Hollyhock flowers grow 2″ – 4″ inches in width. This ensures the entire stem is covered in bloom when the growing season starts. The hairy leaves of the Hollyhock are borne in clumps reaching 6″ – 8” inches across.īlooms start at the base of the stem and continue to move upward 1′ – 2′ feet. It spreads around 1′ – 2′ feet, allow ample room for it to grow properly in your garden. Common Hollyhock Plant Care Size and GrowthĬommon Hollyhock grows tall with an average height of 6′ – 8′ feet tall. The plant comes in a wide variety of colors: red, white, blue, pink, yellow, purple, and even black. They’re closely related to okra, cotton, and hibiscus. The Hollyhock plant fits the definition of old-fashioned garden plants.
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