Rubra oak

Quercus rubra

The Red Oak (Quercus rubra) is an oak tree native to North America.

Growth Characteristics
- Size and Shape: It generally grows up to 20 to 25 meters tall; its branches grow straight and take on a broad, umbrella-like form.
- Leaves: It has broad, maple-leaf-shaped leaves that turn red in the autumn.
- Growth Rate: It grows relatively quickly.
- Growing Environment: It thrives in sunny locations and prefers well-drained soil.

Propagation Methods
- Seed Propagation: It is primarily propagated by acorns. Acorns are harvested in the autumn and planted after overwintering. They can be sown directly in the spring or germinated indoors and transplanted.
- Grafting: Some varieties are also propagated by grafting.

Cultivation Methods
- Soil and Location: Well-drained soil with an acidic to neutral pH is suitable. - Watering: Natural rainfall is sufficient, but it is recommended to water additionally during prolonged droughts.
- Fertilizer: Special fertilizers are not required, but applying a balanced fertilizer in early spring promotes healthier growth.

Uses in Gardens- As a good tree for landscaping, it provides extensive shade and is utilized as a centerpiece in parks or large gardens.
- The red foliage in autumn is very beautiful, making it highly popular for ornamental purposes.

Important Pests and Diseases & Control Methods- Diseases: It is mainly susceptible to root rot or powdery mildew. If these diseases appear, remove the infected parts and tidy up the area around the tree to ensure good air circulation.
- Pests: Pests such as leaf beetles and aphids may occur; control them by utilizing natural predators or organic insecticides if necessary.
- Prevention: Ensuring proper spacing and ventilation can suppress the occurrence of diseases and pests, and proper pruning promotes healthy growth.

Plant Type
Plant Family	Oak family
Height	15~25m
Spread	15~21m
Colors	Red, yellow, green
Bloom Period	May to August
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-40°C

cork oak
Quercus suber

Giant oak
Quercus palustris