Quercus oblongata is the accepted name of a tree species in the Asian sub-genus of 'ring-cupped oaks' and the family Fagaceae; there are no known subspecies. The species is found in temperate regions across Asia, especially in the Himalayas and also further east in the highlands of Southeast Asia. This oak tree grows up to 20 m tall and has been recorded from Vietnam, where it may be called sồi bạc or sồi bạch mao.
Downy oak is resistant to disease and generally not susceptible to illnesses. In terms of care, the plant is fairly low-maintenance. When grown outdoors it needs only minimal watering, and larger specimens usually do not require pruning. Smaller specimens, however, should be trimmed after they finish blooming. Downy oak is suitable for anyone who has an outdoor area, such as a garden or deck, and it does not demand much prior care experience.
How to keep Quercus Oblongata.
Light
Downy oak comes from open habitats, like sunny meadows and forest margins, which provide plentiful light. It performs best in Full Sun but can also tolerate Partial Sun, adapting well to different light conditions.
Temperature
Downy oak is highly adaptable to a variety of climate conditions, from scorching summers to cold winters. However, it still has an optimal temperature range for growth. When temperatures become excessively high, the plant is vulnerable to heat and humidity stress, which can lead to its death. In regions where temperatures approach the lower limit of its cold tolerance, it is important to provide insulation to protect the plant.
Fertilizer
Fertilize your Downy oak in early spring to encourage healthy growth. Regular fertilization improves its overall condition, leading to vigorous growth, better tolerance of difficult conditions, and increased resistance to diseases and pests. Follow a consistent fertilization schedule for your Downy oak to maintain vibrant, deeply colored foliage and a lush appearance.
Botanical profile.
- Plant Type
- Tree
- Life Cycle
- Perennial
- Genus
- Quercus
- Family
- Fagaceae
- Hardiness Zone
- 6-9
- Mature Height
- 10.06 m to 20.12 m
- Mature Spread
- 7.92 m to 14.94 m
- Leaf Color
- Dark Green, Olive Drab
- Leaf Type
- Deciduous
- Flower Color
- Tan
- Flower Size
- 0.25 cm to 0.51 cm
- Bloom Time
- Mid spring, Late spring
- Planting Time
- Spring
- Harvest Time
- Late summer, Early fall, Mid fall
- Native Area
- Austria, Czech Republic, Slovakia, Montenegro, Bulgaria, Greece, Croatia, Slovenia, Ukraine, Serbia, Hungary, Germany, Italy, Spain, Switzerland, France, Albania, Romania, Belgium, Portugal
