Parentucellia viscosa is a species of flowering plant in the family Orobanchaceae known by the common names yellow bartsia and yellow glandweed. It is native to Europe, but it can be found on other continents, including Australia and North America, as an introduced species.
Yellow glandweed has strong disease resistance and is generally not prone to illness. Still, it can be affected by pests and diseases present in its environment. Such infections are typically mild. Care needs are moderate. The plant should be pruned on a regular basis to keep a tidy appearance and encourage healthy growth. Fertilizing can also help stimulate flowering. This plant is appropriate for anyone with outdoor space, like a garden or patio, and does not demand extensive care experience. It may need more attention when grown indoors.
How to keep Parentucellia Viscosa.
Light
Yellow glandweed grows in bright, open habitats and does best in full sun. It can tolerate partial sun but prefers direct sunlight for optimal growth. This annual or biennial plant is noted for its sun-loving nature.
Temperature
Yellow glandweed is native to temperate regions where average temperatures commonly range from 68 to 95 °F (20 to 35 ℃). This plant grows best in those conditions, so any significant deviation from that range may affect its growth.
Fertilizer
Yellow glandweed benefits from regular light applications of fertilizer to encourage healthy leaf development. Fertilize Yellow glandweed about once a month during the summer. Nitrogen is vital for foliage, and providing nitrogen-rich sources helps Yellow glandweed thrive.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Annual
- Genus
- Parentucellia
- Family
- Orobanchaceae
- Hardiness Zone
- 8-10
- Mature Height
- 30 cm to 61 cm
- Mature Spread
- 15 cm to 30 cm
- Leaf Color
- Green
- Leaf Type
- Semi-evergreen
- Flower Color
- Yellow
- Flower Size
- 1.02 cm to 2.03 cm
- Bloom Time
- Early summer, Mid summer
- Planting Time
- Spring, Summer
- Harvest Time
- Late summer, Early fall
- Native Area
- Egypt, Turkey, Tunisia, Montenegro, Cyprus, Armenia, Greece, Croatia, Morocco, Serbia, Lebanon, Portugal, Syria, Italy, Spain, Iran, Albania, Ireland, United Kingdom, Algeria, Azerbaijan, France
Other names.
