Oregold rose (aka TANolg) is a deep yellow hybrid tea rose bred by Mathias Tantau, Jr in Germany in late 1960s. It is a cross between the yellow hybrid tea rose ‘Golden Holstein’ and the pink hybrid tea rose ‘First Prize’.
Mathias Tantau Jr. was a renowned rose breeder who developed many popular rose varieties in the 20th century. In 1971 the rose was named after the famous German opera singer, Anneliese Rothenberger (1924-2010).
The rose was introduced in the United States in early 1980s by Weeks Roses, who acquired the rights to distribute the rose in North America. Where it began to sell it under the name Oregold rose.
Oregold is a tall upright shrub 5 to 7 feet in height. The plant produces large, double flowers with a high-centered bloom form and a deep, golden-yellow color, fading to buff.
This rose variety is hardy in USDA zones 6a through 10b, which means it can tolerate temperatures ranging from -5 to 30 degrees Fahrenheit (-21 to -1 degrees Celsius). The plant blooms in flushes from spring through fall.
Facts About Oregold Rose
| Scientific Name | Rosa ‘Oregold’ |
| Cultivar Group | Hybrid Tea Rose |
| Origin | Germany |
| Year of Introduction | 1972 |
| Breeder | Mathias Tantau Jr |
| Size | 5 to 7 feet in height |
| Foliage | Dark, glossy green |
| USDA Zones | 6a to 10b |
| Marketing Names | Miss Harp, Anneliese Rothenberger or Tantau |
| Awards | All American Rose Selections (AARS) in 1975 |
How To Grow And Care for Oregold Rose
Planting:
- Choose a sunny location with well-drained soil. Oregold roses thrive in at least 6 hours of sunlight daily.
- Plant the rose in a hole twice as wide and deep as the root ball.
- Ensure good air circulation around the plant to prevent diseases.
Soil:
- Provide well-draining soil enriched with organic matter.
- Aim for a slightly acidic to neutral pH (around 6.0-7.0).
Watering:
- Keep the soil consistently moist, especially during dry periods.
- Water at the base of the plant to prevent fungal issues.
- Avoid overhead watering to minimize the risk of diseases.
Mulching:
- Apply a layer of organic mulch around the base of the plant to retain moisture and suppress weeds.
- Mulching also helps regulate soil temperature.
Fertilizing:
- Fertilize in early spring with a balanced rose fertilizer.
- Follow package instructions for application rates and frequency.
Pruning:
- Prune in late winter or early spring before new growth emerges.
- Remove dead or diseased wood and shape the plant to maintain good air circulation.
- Regular deadheading promotes continuous blooming.
Disease Control:
- Keep an eye out for common rose diseases such as blackspot or powdery mildew.
- Apply fungicides preventively, especially in humid conditions.
Pests:
- Monitor for pests like aphids, thrips, or spider mites.
- Treat pest infestations promptly using insecticidal soap or neem oil.
Support:
- Provide support for the Oregold rose, especially if it grows tall or produces large blooms.
- Staking can help prevent damage from strong winds.
Winter Care:
- Mulch around the base of the rose to protect the roots from freezing temperatures.
- Consider wrapping the plant with burlap in colder climates.
Regular Inspection:
- Regularly inspect the Oregold rose for signs of stress, disease, or pests.
- Early detection allows for timely intervention and better plant health.