Rose of Sharon 'Blank Double de Courbet'

Rosa rugosa 'Blanc Double de Coubert'

The Rosa rugosa 'Blanc Double de Coubert' has the following characteristics and cultivation information:

Growth Characteristics
- Flowers: This variety features white semi-double flowers characterized by a delicate fragrance. It blooms continuously, flowering throughout the summer and autumn.
- Leaves: It has glossy, dark green leaves and is relatively resistant to disease compared to other roses.
- Height and Spread: It grows to a height of approximately 1.2 to 1.5 meters and spreads similarly.

Propagation Methods
- Cuttings: Propagation is possible via cuttings using semi-hardwood stems during the summer.
- Seeds: Propagation can also be done via seeds, but this process is time-consuming and may result in variants.

Cultivation Methods
- Soil: It prefers well-draining soil with a pH of slightly acidic to neutral.
- Sunlight: It grows well with sufficient sunlight, requiring at least 6 hours of sunlight per day. - Watering: Water regularly in well-drained soil, but be careful not to overwater.
- Fertilization: Apply organic fertilizer in the spring to promote growth and flowering.

Uses in the Garden
- Border Plant: Since it grows in a shrub form, it is suitable as a hedge or border plant.
- Decorative Effect: Its showy white flowers and fragrance add a decorative touch to the garden.

Important Pests and Control Methods
- Powdery Mildew: If white powdery symptoms appear on the leaves, use an antifungal agent.
- Aphids: If aphids occur, wash them off with soapy water or use an appropriate pesticide.
- Fire Blight: Remove diseased parts when early symptoms appear, and it is recommended to select disease-resistant varieties.

You can maintain healthy and beautiful roses through regular pruning and periodic pest and disease checks.

Plant Family	Rosaceae
Height	120~210cm
Spread	90~150cm
Colors	white
Bloom Period	June to September
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-30°C

White crabapple
Rosa rugosa 'Alba'

Dagmar Hastrup
Rosa rugosa 'Dagmar Hastrup'