Dahlia Rocco

Description

Dahlia Rocco is a beautiful perennial plant that belongs to the Asteraceae family. It is a hybrid dahlia that was developed in the early 20th century by crossing different dahlia species. Dahlia Rocco is known for its striking red flowers with a yellow center, making it a popular choice for gardeners and florists alike. The plant can grow up to 3 feet tall and 2 feet wide, producing large blooms from mid-summer to fall. Dahlia Rocco is easy to grow and maintain, making it a great addition to any garden or landscape.

Taxonomic Information

Appearance

The Dahlia Rocco plant has green, slightly serrated leaves that are arranged in pairs along the stem. The flowers are large and showy, with a diameter of up to 6 inches. They are bright red with a yellow center, and have a velvety texture. The plant can grow up to 3 feet tall and 2 feet wide, and blooms from mid-summer to fall. Dahlia Rocco is a great choice for adding color and texture to any garden or landscape.

Care Guide

Dahlia Rocco is easy to grow and care for, but there are a few things to keep in mind to ensure its success:

• Water: Dahlia Rocco needs regular watering, especially during hot and dry weather. Water deeply once a week, making sure the soil is evenly moist.
• Fertilization: Fertilize the plant every 4-6 weeks during the growing season with a balanced fertilizer. Avoid high-nitrogen fertilizers, as they can promote leaf growth at the expense of flower production.
• Soil: Dahlia Rocco prefers well-draining soil that is rich in organic matter. Amend the soil with compost or other organic matter before planting.
• Sunlight: The plant needs full sun to thrive, so choose a sunny location for planting. If the plant receives less than 6 hours of sunlight per day, it may not produce as many flowers.
• Hardiness Zones: Dahlia Rocco is hardy in USDA Zones 8-10, but can be grown in other zones as an annual.

Common Pests & Diseases

Dahlia Rocco is generally resistant to pests and diseases, but can occasionally be affected by the following:

• Aphids: These small insects can be found on the underside of leaves and can cause distortion and yellowing of the leaves. Use insecticidal soap or neem oil to control them.
• Spider Mites: These tiny pests can cause yellowing and webbing on the leaves. Use insecticidal soap or neem oil to control them.
• Botrytis Blight: This fungal disease can cause brown spots on the leaves and flowers, and can eventually kill the plant. Remove affected leaves and flowers and apply a fungicide to prevent further spread.
• Root Rot: This fungal disease can cause the plant to wilt and eventually die. Avoid overwatering and make sure the soil has good drainage to prevent root rot.

Habitat

Dahlia Rocco is native to Mexico and Central America, where it grows in sunny, well-draining soil. It is a popular garden plant in many parts of the world and is grown as an ornamental for its beautiful flowers. Dahlia Rocco can be grown in a variety of soil types and climates, as long as it receives enough sunlight and water.

Question and Answer

Q: Can Dahlia Rocco be grown in containers?

A: Yes, Dahlia Rocco can be grown in containers as long as the container is at least 12 inches wide and deep. Make sure the soil is well-draining and the plant receives enough sunlight and water.

Q: How often should Dahlia Rocco be fertilized?

A: Dahlia Rocco should be fertilized every 4-6 weeks during the growing season with a balanced fertilizer. Avoid high-nitrogen fertilizers, as they can promote leaf growth at the expense of flower production.

Q: When should Dahlia Rocco be pruned?

A: Dahlia Rocco should be pruned in the spring before new growth appears. Cut back the stems to about 6 inches above the soil line to encourage bushier growth and more flowers.

Q: How long do Dahlia Rocco flowers last?

A: Dahlia Rocco flowers can last up to 5 days in a vase, and can bloom for several months on the plant if deadheaded regularly.

Related Plants

• Dahlia Redskin
• Dahlia Bishop of Llandaff
• Dahlia Pompon Mix
• Dahlia Arabian Night

References

• “Dahlia Rocco.” Gardenia.net, www.gardenia.net/plant-variety/dahlia-rocco.
• “Dahlia Rocco.” PlantFiles, https://davesgarden.com/guides/pf/go/69198/.
• “Dahlia Rocco.” National Garden Bureau, www.ngb.org/year-of-the-dahlia-2022/dahlia-rocco/.