Hieracium horridum, known as the prickly hawkweed or shaggy hawkweed, is a species of plant in the family Asteraceae. It gets its name from the long, dense, shaggy white to brown hairs (trichomes) which cover all of the plant parts of this plant species. The species is native to Oregon, California, and Nevada in the western United States.
Prickly hawkweed is fairly resistant to disease and is generally not susceptible to illnesses. However, it can be affected by pests and diseases present in its environment. These problems are typically not serious. As for care, the plant requires moderate maintenance. It should be pruned regularly to keep a neat appearance and support healthy growth. Fertilizing can also help encourage flowering. Prickly hawkweed is appropriate for anyone with outdoor space, such as a garden or patio, and does not need extensive gardening experience. It may need more attention when cultivated indoors.
How to keep Hieracium Horridum.
Light
Prickly hawkweed is a sun-loving, perennial herbaceous plant native to open habitats, commonly found in meadows and grasslands. It prefers full sun but can also tolerate partial sun.
Fertilizer
Generally, one fertilizer application in spring is enough for Prickly hawkweed, though multiple feedings can boost growth. Apply fertilizer roughly every month to a month and a half. Fertilization improves the leaves’ appearance and function, helping maintain even color and a healthy texture. It also encourages root development and enhances nutrient uptake for long-term plant health.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial
- Genus
- Hieracium
- Family
- Asteraceae
- Hardiness Zone
- 4-8
- Mature Height
- 10 cm to 40 cm
- Mature Spread
- 15 cm to 25 cm
- Leaf Color
- Green, Dark Green
- Leaf Type
- Evergreen
- Flower Color
- Yellow
- Flower Size
- 1.02 cm to 2.03 cm
- Bloom Time
- Summer
- Planting Time
- Spring
- Harvest Time
- Late summer, Early fall
Other names.