Cosmos Bipinnatus Rubenza

Description

Cosmos Bipinnatus Rubenza is a stunning annual plant that belongs to the Asteraceae family. It is native to Mexico but has spread to other parts of the world, including Europe and North America. The plant is known for its vibrant, deep red flowers that bloom in mid-summer until the first frost. The flowers have a diameter of 2-3 inches and are borne on long stems that can reach up to 4 feet tall. The foliage of the plant is feathery and fern-like, with leaves that are deeply divided into narrow segments. The plant is easy to grow and care for, making it a popular choice among gardeners and landscapers.

Taxonomic Information

Appearance

The Cosmos Bipinnatus Rubenza plant can grow up to 4 feet tall and 2 feet wide. The flowers are large and showy, with a diameter of 2-3 inches. The petals are deep red and have a velvety texture. The center of the flower is yellow with dark brown or black markings. The leaves of the plant are feathery and fern-like, with narrow segments that are deeply divided. The foliage is a bright green color and provides a beautiful contrast to the vibrant red flowers. Overall, the Cosmos Bipinnatus Rubenza plant is a stunning addition to any garden or landscape.

Care Guide

The Cosmos Bipinnatus Rubenza plant is easy to grow and care for. Here are some tips:

• Water: Water the plant regularly, especially during dry spells. However, be careful not to overwater, as this can lead to root rot.
• Fertilization: Fertilize the plant every 2-4 weeks with a balanced fertilizer. This will help promote healthy growth and vibrant flowers.
• Soil: The plant prefers well-draining soil that is rich in organic matter. If the soil is too heavy, mix in some sand or perlite to improve drainage.
• Sunlight: The plant prefers full sun but can tolerate partial shade. Make sure it gets at least 6 hours of direct sunlight per day.
• Hardiness Zones: The plant is hardy in zones 3-10.

Common Pests & Diseases

The Cosmos Bipinnatus Rubenza plant is relatively resistant to pests and diseases. However, here are some issues to look out for:

• Aphids: These small insects can suck the sap from the plant and cause stunted growth and yellowing leaves. Use insecticidal soap or neem oil to control them.
• Spider Mites: These tiny pests can spin webs on the plant and cause leaves to turn yellow and fall off. Use insecticidal soap or neem oil to control them.
• Mildew: Powdery mildew can affect the foliage of the plant, causing a white, powdery coating. Prevent this by ensuring good air circulation around the plant and avoiding overhead watering.

Habitat

The Cosmos Bipinnatus Rubenza plant is native to Mexico but has been introduced to other parts of the world, including Europe and North America. It prefers well-draining soil and full sun but can tolerate partial shade. The plant is hardy in zones 3-10 and can be grown in gardens, borders, and containers.

Question and Answer

Q: Can I grow Cosmos Bipinnatus Rubenza in a container?

A: Yes, the plant can be grown in a container. Just make sure the container is large enough to accommodate the plant’s root system and provide good drainage.

Q: How often should I fertilize the plant?

A: Fertilize the plant every 2-4 weeks with a balanced fertilizer.

Q: How do I control aphids on my plant?

A: Use insecticidal soap or neem oil to control aphids on your plant.

Q: What is the hardiness zone for Cosmos Bipinnatus Rubenza?

A: The plant is hardy in zones 3-10.

Related Plants

• Cosmos Bipinnatus
• Cosmos Sulphureus
• Cosmos Atrosanguineus
• Cosmos Psyche White

References

• “Cosmos bipinnatus Rubenza.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b905.
• “Cosmos bipinnatus.” Royal Horticultural Society, www.rhs.org.uk/Plants/14042/Cosmos-bipinnatus/Details.
• “Cosmos bipinnatus.” Gardening Know How, www.gardeningknowhow.com/ornamental/flowers/cosmos/growing-cosmos.htm.