Symphytum Asperum
Contents
Description
Symphytum Asperum, commonly known as Rough Comfrey, is a perennial flowering plant that belongs to the Boraginaceae family. It is native to Europe and Western Asia but has been introduced to other parts of the world as an ornamental plant. The plant grows up to 1.2 meters in height and has a spread of up to 0.6 meters. It features hairy leaves and stems and produces small blue or purple flowers in the summer.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Boraginales |
| Family | Boraginaceae |
| Genus | Symphytum |
Appearance
Symphytum Asperum has a hairy stem that can grow up to 1.2 meters in height. The leaves are also hairy, lance-shaped, and up to 30cm long. The plant produces small blue or purple flowers that are arranged in clusters at the end of the stems. The flowers bloom in the summer and attract bees and other pollinators. The plant has a spread of up to 0.6 meters.
Care Guide
Symphytum Asperum is a hardy plant that requires minimal care. Here are some tips to keep it healthy:
- Water: Water the plant regularly during the growing season, but avoid overwatering as it can cause root rot.
- Fertilization: Use a balanced fertilizer once a month during the growing season to promote healthy growth.
- Soil: Plant Symphytum Asperum in well-draining soil that is rich in organic matter.
- Sunlight: The plant prefers partial shade to full sun.
- Hardiness Zones: Symphytum Asperum grows well in USDA hardiness zones 4-8.
Common Pests & Diseases
Symphytum Asperum is generally resistant to pests and diseases. However, it may occasionally be affected by the following:
- Aphids: These sap-sucking insects can cause stunted growth and curling leaves. Use insecticidal soap to control them.
- Spider mites: These tiny pests can cause yellowing leaves and fine webbing. Use insecticidal soap or neem oil to control them.
- Rust: This fungal disease causes orange or brown spots on leaves. Remove infected leaves and treat the plant with a fungicide.
Habitat
Symphytum Asperum is native to Europe and Western Asia but has been introduced to other parts of the world as an ornamental plant. It grows in moist meadows, along streams and rivers, and in other damp habitats.
Question and Answer
Q: Is Symphytum Asperum toxic?
A: Yes, all parts of the plant contain pyrrolizidine alkaloids, which can be toxic if ingested in large amounts.
Q: Can Symphytum Asperum be propagated from cuttings?
A: Yes, Symphytum Asperum can be propagated from stem cuttings taken in the spring or fall.
Q: What is the best time to plant Symphytum Asperum?
A: The best time to plant Symphytum Asperum is in the spring or fall when the soil is moist and temperatures are cooler.
Q: Does Symphytum Asperum attract pollinators?
A: Yes, Symphytum Asperum produces small blue or purple flowers that attract bees and other pollinators.
Related Plants
- Symphytum Officinale
- Symphytum Tuberosum
- Symphytum Grandiflorum
References
- Missouri Botanical Garden. (n.d.). Symphytum asperum. Retrieved from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c727
- RHS. (n.d.). Symphytum asperum. Retrieved from https://www.rhs.org.uk/Plants/18238/Symphytum-asperum/Details
- The Spruce. (2021). Growing Comfrey: A Complete Guide on How to Plant, Grow, and Care for Comfrey. Retrieved from https://www.thespruce.com/growing-comfrey-5078781
