Contents
Description
Jacobaea Erucifolia is a perennial plant that belongs to the family Asteraceae, native to Europe and Asia. It is commonly known as hoary ragwort or hoary groundsel. The plant typically grows up to 1 meter in height and has hairy stems and leaves. The flowers of Jacobaea Erucifolia are yellow, and they bloom in clusters from June to September. The plant is often found growing in open areas, such as meadows, waste grounds, and roadsides.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Jacobaea |
Appearance
The leaves of Jacobaea Erucifolia are deeply lobed and have a grayish-green color. The upper surface of the leaves is hairy, while the lower surface is smooth. The flowers of the plant are small and yellow, and they are arranged in clusters at the top of the stem. The stem of Jacobaea Erucifolia is hairy and can grow up to 1 meter tall. The plant produces a taproot, which can grow up to 50 cm long.
Care Guide
Jacobaea Erucifolia is a hardy plant that requires minimal care. It prefers well-drained soil and full sun exposure. The plant can tolerate drought conditions and does not require frequent watering. However, it is important to keep the soil moist during the first few weeks after planting. Jacobaea Erucifolia does not require fertilizer, but a balanced fertilizer can be applied once a year to promote growth. The plant can grow in a wide range of hardiness zones, from 3 to 9.
Common Pests & Diseases
Some of the common pests that can affect Jacobaea Erucifolia include aphids, spider mites, and whiteflies. These pests can be controlled by using insecticidal soap or neem oil. The plant is also susceptible to powdery mildew, which can be controlled by improving air circulation around the plant and avoiding overhead watering. Root rot can occur if the soil is kept too wet, and this can be prevented by ensuring that the soil is well-drained.
Habitat
Jacobaea Erucifolia is native to Europe and Asia and is often found growing in open areas, such as meadows, waste grounds, and roadsides. The plant can tolerate a wide range of soil types and can grow in both acidic and alkaline soils. It is a hardy plant that can grow in a wide range of hardiness zones, from 3 to 9.
Question and Answer
Q: Is Jacobaea Erucifolia poisonous?
A: Yes, the plant is toxic to both humans and animals if ingested.
Q: Can Jacobaea Erucifolia be grown in containers?
A: Yes, the plant can be grown in containers as long as they are large enough to accommodate the taproot.
Q: How often should Jacobaea Erucifolia be watered?
A: The plant does not require frequent watering and can tolerate drought conditions. However, it is important to keep the soil moist during the first few weeks after planting.
Q: How can powdery mildew be prevented in Jacobaea Erucifolia?
A: Powdery mildew can be prevented by improving air circulation around the plant and avoiding overhead watering.
Related Plants
- Jacobaea Aquatica
- Jacobaea Vulgaris
- Jacobaea Maritima
- Jacobaea Adonidifolia
References
- Missouri Botanical Garden. (n.d.). Jacobaea erucifolia. Retrieved August 26, 2021, from http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c528
- RHS. (n.d.). Jacobaea erucifolia. Retrieved August 26, 2021, from https://www.rhs.org.uk/Plants/24947/Jacobaea-erucifolia/Details
- USDA. (n.d.). Jacobaea erucifolia (L.) G.Gaertn., B.Mey. & Scherb. Retrieved August 26, 2021, from https://plants.usda.gov/core/profile?symbol=JAER3
