Contents
Description
Galinsoga Quadriradiata, also known as shaggy soldier or hairy galinsoga, is a fast-growing annual plant native to South America. It belongs to the Asteraceae family, which includes daisies and sunflowers. This plant has become widespread in North America, particularly in the eastern and midwestern regions, and is considered an invasive species in some areas. It can grow up to 3 feet tall and spread up to 2 feet wide.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Galinsoga |
Appearance
The leaves of Galinsoga Quadriradiata are hairy and slightly serrated, with a dark green color. The flowers are small, white, and star-shaped, with five petals. They bloom from mid-summer to early fall and attract pollinators such as bees and butterflies. The stems are also hairy, and the plant has a bushy appearance. Overall, Galinsoga Quadriradiata has a charming and delicate look, despite being an invasive species.
Care Guide
Galinsoga Quadriradiata is easy to grow and care for. Here are some tips to help you keep your plant healthy:
- Water: This plant prefers moist soil, so it’s essential to water it regularly. However, be careful not to overwater, as this can lead to root rot.
- Fertilization: You can fertilize Galinsoga Quadriradiata once a month during the growing season, using a balanced fertilizer. However, it’s not strictly necessary, and the plant can thrive without it.
- Soil: Galinsoga Quadriradiata can grow in various soil types, but it prefers well-draining soil with a pH between 5.5 and 7.5.
- Sunlight: This plant can grow in full sun or partial shade, but it prefers some shade during the hottest part of the day.
- Hardiness Zones: Galinsoga Quadriradiata is hardy in USDA zones 2 to 11, meaning it can withstand cold temperatures down to -50°F.
Common Pests & Diseases
Galinsoga Quadriradiata is relatively pest and disease-resistant. However, here are some issues that you may encounter:
- Aphids: These small insects can feed on the sap of the plant and cause wilting and yellowing of the leaves. You can control aphids by spraying the plant with a mixture of water and dish soap or using insecticidal soap.
- Whiteflies: These tiny white insects can also feed on the sap of the plant and cause damage. You can control whiteflies by spraying the plant with neem oil or using sticky traps.
- Powdery mildew: This fungal disease can cause a white powdery coating on the leaves and stems of the plant. You can control powdery mildew by spraying the plant with a mixture of water and baking soda or using a fungicide.
Habitat
Galinsoga Quadriradiata can grow in various habitats, including gardens, fields, and waste areas. It prefers moist soil and can thrive in disturbed areas such as roadsides and construction sites. This plant can also grow in urban areas, and its seeds can spread easily by wind, water, or human activity.
Question and Answer
Q: Is Galinsoga Quadriradiata toxic to humans?
A: No, this plant is not toxic to humans, and it’s not known to have any medicinal properties either. However, it can cause allergies in some people, particularly those with sensitive skin.
Q: Can Galinsoga Quadriradiata be used as a food source?
A: Although this plant is not commonly used as a food source, its leaves and flowers are edible and can be added to salads, soups, or stews. However, be sure to wash them thoroughly before consuming them.
Q: Is Galinsoga Quadriradiata easy to propagate?
A: Yes, this plant is easy to propagate by seed or stem cuttings. The seeds can germinate quickly, and the plant can self-seed easily, so be sure to remove the spent flowers to prevent it from spreading too much.
Q: How do I control the spread of Galinsoga Quadriradiata?
A: The best way to control the spread of this plant is to remove it manually or using herbicides. Be sure to wear gloves and protective clothing when handling it, as it can cause skin irritation.
Related Plants
- Galinsoga Parviflora
- Galinsoga Ciliata
- Galinsoga Parviflora
- Tagetes Erecta
- Achillea Millefolium
References
- “Galinsoga quadriradiata.” Missouri Botanical Garden. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c864
- “Galinsoga quadriradiata.” USDA Plants Database. https://plants.usda.gov/core/profile?symbol=GAQU2
- “Shaggy Soldier Galinsoga quadriradiata.” Invasive Plant Atlas of the United States. https://www.invasiveplantatlas.org/subject.html?sub=5196
