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Description
Rheum Rhabarbarum, commonly known as rhubarb, is a perennial plant that belongs to the family Polygonaceae. It is native to Asia and has been cultivated for its edible stalks for centuries. Rhubarb is known for its tart flavor and is often used in desserts, jams, and sauces. The plant can grow up to 6 feet tall and produces large, triangular leaves that can reach up to 2 feet in diameter.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Angiosperms |
| Class | Eudicots |
| Order | Caryophyllales |
| Family | Polygonaceae |
| Genus | Rheum |
Appearance
The stalks of Rheum Rhabarbarum can range in color from pale green to deep red and can grow up to 2 feet long. The leaves are large and triangular, with a slightly rough texture and a deep green color. The plant can grow up to 6 feet tall and 4 feet wide, with a thick, fleshy root system. The flowers are small and greenish-white, and are produced on tall, erect stalks that can reach up to 6 feet in height.
Care Guide
Rheum Rhabarbarum prefers well-draining soil that is rich in organic matter. The plant should be watered deeply once a week, and the soil should be kept moist but not waterlogged. Fertilizer can be applied in the spring, using a balanced formula such as 10-10-10. Rhubarb prefers full sun but can tolerate some shade. It is hardy in USDA zones 3-8.
Common Pests & Diseases
Rheum Rhabarbarum is susceptible to a number of pests and diseases, including aphids, slugs, and powdery mildew. Aphids can be controlled using insecticidal soap, while slugs can be deterred with copper tape or diatomaceous earth. Powdery mildew can be treated with a fungicide, or by improving air circulation around the plant.
Habitat
Rheum Rhabarbarum is native to Asia and is commonly grown in temperate climates around the world. It prefers cool, moist conditions and is often found in gardens, orchards, and farms.
Question and Answer
Q: Can I grow Rheum Rhabarbarum in a container?
A: Yes, rhubarb can be grown in a large container, but it may not reach its full size.
Q: When should I harvest the stalks?
A: The stalks can be harvested in the spring or early summer, once they are at least 10 inches long.
Q: How often should I divide the plant?
A: Rhubarb plants should be divided every 4-5 years to prevent overcrowding and maintain plant health.
Q: Can I grow rhubarb from seed?
A: Yes, rhubarb can be grown from seed, but it is more common to propagate the plant from crowns or divisions.
Related Plants
- Rheum Palmatum
- Rheum Officinale
- Rheum Tanguticum
- Rumex Acetosa
References
- “Rheum Rhabarbarum.” Missouri Botanical Garden. Accessed September 15, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=279966.
- “Rhubarb.” Royal Horticultural Society. Accessed September 15, 2021. https://www.rhs.org.uk/plants/45834/rheum-rhabarbarum/details.
- “Growing Rhubarb.” Old Farmer’s Almanac. Accessed September 15, 2021. https://www.almanac.com/plant/rhubarb.
