Dahlia purpurea

Dalea purpurea

Dahlia purpurea, commonly known as "Cell Effect Purple" in Korea, is a perennial herb native primarily to the grasslands of North America. Below is key information regarding Dahlia purpurea.

Growth Characteristics
- Height: Generally grows to a height of 30–90 cm.
- Flowers: Blooms with purple flowers from summer to autumn, attracting insects such as bees and butterflies.
- Leaves: Feather-shaped leaves grow around the stem and are pale green.
- Roots: Possesses a deep and robust root system, allowing it to withstand dry environments.

Propagation Methods
- Seed Propagation: Harvest mature seeds in the autumn and sow them in the spring. Slight cold treatment may be necessary to increase germination rates.
- Root Division: Propagation can be performed by dividing strong roots in the spring or autumn.

Cultivation Methods
- Soil: Prefers well-drained sandy or gravelly soil. - Sunlight: A location receiving plenty of sunlight is suitable.
- Watering: Once established, it can tolerate dry conditions, but regular watering helps with initial settlement.

Garden Use
- It is well-suited for landscape gardens, naturalistic gardens, and wildflower gardens.
- It is excellent for planting plants that attract butterflies and bees.

Important Pests and Control Methods
- Diseases: It is generally resistant to diseases, but root rot may occur in overly wet environments.
- Pests: There are no major pest issues, but damage from grasshoppers and leaf beetles may occur rarely.
- Control Methods:
- To prevent diseases, create an environment with proper drainage, and use fungicides to control fungi if necessary.
- In the case of pests, if damage is severe, use organic insecticides or remove them by hand.

By referring to this information, you will be able to grow a healthy Dahlia purpurea.

Plant Family	legumes
Height	30~90cm
Spread	30~60cm
Colors	purple
Bloom Period	June to August
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-30°C

Dahlia odorifera
Dalbergia odorifera

Dahlia candida
Dalea candida