Dahlia 'Polka'

Dahlia hybrid 'Polka'

Dahlia 'Polka' (Dahlia hybrid 'Polka') is a type of dahlia that is a popular garden variety due to its diverse colors and flower shapes. The following is information regarding the growth characteristics, propagation methods, cultivation methods, garden uses, and important pests and diseases and control methods for Dahlia 'Polka'.

Growth Characteristics
- Growing Environment: It thrives in sunny locations and prefers well-drained soil.
- Height and Width: It grows to a height of approximately 90–120 cm and a width of about 60 cm.
- Flowers: It produces large flowers from summer to autumn, characterized by a variety of colors and patterns.
- Cold Hardiness: It blooms continuously until the first frost. During the winter, the bulbs must be dug up and stored indoors.

Propagation Methods
- Bulb Division: This is the most common method; bulbs are divided and planted in the spring.
- Seed Sowing: Propagation by seeds is also possible, but it takes time for the plant to bloom. Cultivation Method
- Planting: Plant the bulbs after the last frost in spring.
- Watering: Water appropriately to prevent the soil from drying out, but be careful not to overwater.
- Fertilization: It is recommended to fertilize during the growing season to aid growth.
- Supporting: Since this is a tall plant, install supports to prevent it from falling over.

Uses in the Garden
- Plant in flowerbeds or pots to enjoy flowers of various colors.
- It is also highly popular as a cut flower and is frequently used for flower arrangements.

Important Pests and Diseases & Control Methods
- Diseases: Ensure sufficient ventilation to prevent fungal diseases.
- Pests: It may be attacked by aphids, mites, etc.; control them by using insecticides periodically.
- Control Methods: Regularly inspect the plant's condition and take immediate action if any problems are found. If organic control is necessary, natural insecticides such as soapy water or garlic/chili pepper spray can be used.

The information above will help you grow a healthy and beautiful Dahlia 'Polka'. I hope you have a pleasant time in the garden admiring flowers of various colors and shapes.

Plant Family	Asteraceae
Height	90~120cm
Spread	30~60cm
Colors	yellow, white
Bloom Period	July~August
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-10°C

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Dahlia hybrid 'Nepos'