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Description
Solidago Ptarmicoides, commonly known as Alpine goldenrod, is a herbaceous perennial plant belonging to the Asteraceae family. It is native to North America and can be found in the Rocky Mountains and the northern regions of the United States and Canada. The plant typically grows up to 18 inches tall and 12 inches wide, with narrow leaves that are 2-3 inches long. It produces bright yellow flowers in late summer and early fall, attracting pollinators such as bees and butterflies.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Solidago |
Appearance
The Alpine goldenrod has narrow, lance-shaped leaves that are green in color and about 2-3 inches long. The plant typically grows up to 18 inches tall and 12 inches wide, forming a clump. In late summer and early fall, the plant produces bright yellow flowers that are arranged in clusters at the top of the stem. The flowers are small, with a diameter of about 1/4 inch, and are attractive to pollinators such as bees and butterflies. The plant’s seeds are small, brown, and have a pappus that helps with wind dispersal.
Care Guide
Alpine goldenrod is a hardy plant that can tolerate a wide range of conditions, making it suitable for both novice and experienced gardeners. Here are some tips for caring for this plant:
- Water: The plant prefers moist soil but can tolerate some drought. Water the plant regularly during hot and dry weather.
- Fertilization: Fertilize the plant with a balanced fertilizer once a year in early spring.
- Soil: The plant prefers well-drained soil that is rich in organic matter. It can tolerate a range of soil types, including sandy and clay soils.
- Sunlight: The plant prefers full sun to partial shade. It can tolerate some shade but may not flower as well.
- Hardiness Zones: The plant is hardy in USDA zones 3 to 7.
Common Pests & Diseases
Alpine goldenrod is generally resistant to pests and diseases. However, like all plants, it can be susceptible to some issues. Here are some common pests and diseases that may affect this plant:
- Aphids: These small, soft-bodied insects may feed on the plant’s leaves, causing them to curl or become distorted. Use insecticidal soap or neem oil to control aphids.
- Spider mites: These tiny pests may feed on the plant’s leaves, causing them to turn yellow or bronze. Use insecticidal soap or neem oil to control spider mites.
- Powdery mildew: This fungal disease may appear as a white, powdery coating on the plant’s leaves. It can be prevented by keeping the plant’s foliage dry and ensuring good air circulation.
- Rust: This fungal disease may appear as small, reddish-brown spots on the plant’s leaves. It can be prevented by ensuring good air circulation and removing any infected plant material.
Habitat
Alpine goldenrod is native to North America and can be found in the Rocky Mountains and the northern regions of the United States and Canada. It grows in a variety of habitats, including alpine meadows, open forests, and rocky slopes. The plant is adapted to cold and harsh conditions and can tolerate snow and frost.
Question and Answer
Q: Is Alpine goldenrod deer-resistant?
A: Yes, Alpine goldenrod is generally deer-resistant. However, in times of food scarcity, deer may eat almost any plant.
Q: Can Alpine goldenrod be grown in containers?
A: Yes, Alpine goldenrod can be grown in containers. Use a well-draining potting mix and ensure the plant receives adequate sunlight and water.
Q: How often should Alpine goldenrod be fertilized?
A: Fertilize Alpine goldenrod once a year in early spring with a balanced fertilizer.
Q: How do I propagate Alpine goldenrod?
A: Alpine goldenrod can be propagated by division in spring or fall. Dig up the clump and separate it into smaller pieces, ensuring each piece has some roots and foliage. Replant the divisions in well-draining soil.
Related Plants
- Solidago rigida
- Solidago rugosa
- Solidago canadensis
- Solidago nemoralis
References
- “Solidago ptarmicoides.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=f260.
- “Solidago ptarmicoides.” PlantFiles, davesgarden.com/guides/pf/go/62699/.
