Contents
Description
Galeopsis speciosa, commonly known as large-flowered hemp-nettle, is a herbaceous perennial plant belonging to the mint family Lamiaceae. It is native to Europe and Western Asia and can grow up to 1.5 meters tall. The plant has a square stem and opposite leaves that are dark green and toothed. During the summer months, the plant produces large pink or purple flowers that are about 3 cm long and arranged in whorls around the stem.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Galeopsis |
Appearance
The leaves of Galeopsis speciosa are dark green and toothed, and they grow up to 10 cm long and 5 cm wide. The plant can grow up to 1.5 meters tall and has a square stem. During the summer months, the plant produces large pink or purple flowers that are about 3 cm long and arranged in whorls around the stem. The flowers have a unique shape and are attractive to pollinators such as bees and butterflies.
Care Guide
Galeopsis speciosa is relatively easy to care for and can be grown in a variety of conditions. Here are some tips for caring for this plant:
- Water: The plant prefers moist soil, so it should be watered regularly to keep the soil evenly moist.
- Fertilization: The plant does not require frequent fertilization, but a balanced fertilizer can be applied once a month during the growing season to encourage healthy growth.
- Soil: The plant prefers well-draining soil that is rich in organic matter.
- Sunlight: The plant prefers full sun to partial shade.
- Hardiness Zones: The plant can grow in USDA hardiness zones 4 to 9.
Common Pests & Diseases
Galeopsis speciosa is relatively resistant to pests and diseases. However, it may be susceptible to powdery mildew, which can be treated with a fungicide. If grown in a wet or humid environment, the plant may also be susceptible to root rot, which can be avoided by ensuring that the soil is well-draining.
Habitat
Galeopsis speciosa is native to Europe and Western Asia and can be found growing in meadows, pastures, and along roadsides. It prefers moist soil and can grow in both sun and partial shade.
Question and Answer
Q: Is Galeopsis speciosa poisonous?
A: No, Galeopsis speciosa is not poisonous to humans or animals.
Q: Can Galeopsis speciosa be grown in containers?
A: Yes, Galeopsis speciosa can be grown in containers as long as the container has adequate drainage and the plant is provided with enough water and nutrients.
Q: How often should I water Galeopsis speciosa?
A: The plant prefers moist soil, so it should be watered regularly to keep the soil evenly moist.
Q: What is the best time of year to plant Galeopsis speciosa?
A: The best time to plant Galeopsis speciosa is in the spring or fall when the weather is cooler and the plant is entering a period of active growth.
Related Plants
- Galeopsis ladanum
- Galeopsis bifida
- Galeopsis angustifolia
- Galeopsis tetrahit
References
- “Galeopsis speciosa.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b439
- “Galeopsis speciosa.” Plants of the World Online, powo.science.kew.org/taxon/urn:lsid:ipni.org:names:451888-1
- “Large-flowered hemp-nettle (Galeopsis speciosa).” Invasive Species Compendium, www.cabi.org/isc/datasheet/24329
