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Description
The Alcea Rosea Radiant Rose, commonly known as Hollyhock, is a tall flowering plant that belongs to the mallow family. It is native to Europe and Asia and is widely cultivated for its showy flowers that bloom in shades of pink, red, yellow, and white. The Radiant Rose variety has large, fully double blooms in a vibrant shade of pink that can grow up to 5 inches in diameter. It can grow up to 6 feet tall and 2 feet wide and is a popular choice among gardeners for its striking beauty.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Malvales |
| Family | Malvaceae |
| Genus | Alcea |
Appearance
The Alcea Rosea Radiant Rose has large, fully double blooms in a vibrant shade of pink that can grow up to 5 inches in diameter. The flowers grow on tall, sturdy stems that can reach up to 6 feet in height. The plant has a thick, hairy stem and large, dark green leaves that are lobed and heart-shaped. The leaves grow in a rosette at the base of the stem and alternate up the stem. The plant is biennial, meaning it blooms in its second year of growth before dying off.
Care Guide
The Alcea Rosea Radiant Rose is a relatively easy plant to care for. It prefers full sun and well-drained soil that is rich in organic matter. Water deeply once a week, making sure the soil is moist but not waterlogged. Fertilize in the spring with a balanced fertilizer and again in mid-summer with a high-phosphorous fertilizer to promote blooming. The plant is hardy in USDA zones 3-8 and can withstand temperatures down to -40°F.
Common Pests & Diseases
The Alcea Rosea Radiant Rose is susceptible to a few common pests and diseases. Japanese beetles, aphids, and spider mites can all infest the plant, causing damage to the leaves and flowers. To prevent pests, keep the plant healthy and well-watered. If pests do appear, treat with insecticidal soap or neem oil. The plant is also susceptible to rust, a fungal disease that causes orange spots on the leaves. Remove infected leaves and treat with a fungicide to prevent further spread.
Habitat
The Alcea Rosea Radiant Rose is native to Europe and Asia and is widely cultivated in gardens and parks around the world. It prefers full sun and well-drained soil and can tolerate a range of temperatures and conditions. It is often grown as an ornamental plant for its striking flowers and tall stature.
Questions and Answers
Q: How often should I water my Alcea Rosea Radiant Rose?
A: Water deeply once a week, making sure the soil is moist but not waterlogged.
Q: What kind of soil does the Alcea Rosea Radiant Rose prefer?
A: The plant prefers well-drained soil that is rich in organic matter.
Q: What is the hardiness zone for the Alcea Rosea Radiant Rose?
A: The plant is hardy in USDA zones 3-8 and can withstand temperatures down to -40°F.
Q: What are some common pests and diseases that affect the Alcea Rosea Radiant Rose?
A: Japanese beetles, aphids, spider mites, and rust are all common pests and diseases that can affect the plant.
Related Plants
- Alcea Rosea Chaters Double
- Alcea Rosea Nigra
- Alcea Rosea Summer Carnival
References
- “Hollyhock (Alcea rosea).” Missouri Botanical Garden. Accessed 10 Nov. 2021. <http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=250032&isprofile=0&basic=hollyhock>.
- “Alcea rosea ‘Radiant Rose’.” Plant Finder. Accessed 10 Nov. 2021. <https://www.monrovia.com/plant-catalog/plants/2071/radiant-rose-hollyhock/>.
- “Hollyhocks.” Better Homes and Gardens. Accessed 10 Nov. 2021. <https://www.bhg.com/gardening/plant-dictionary/annual/hollyhock/>.
