Mirabilis jalapa

Mirabilis jalapa

Growth Characteristics

Mirabilis jalapa is a perennial herbaceous plant that grows primarily in tropical and subtropical regions. Its stems are soft and highly branched, reaching a height of approximately 60 to 120 cm. The leaves are ovate or broadly ovate, arranged opposite each other, and have a smooth surface. It mainly blooms from summer to autumn, and the flowers come in various colors, including yellow, pink, and white. The flowers open in the afternoon and remain in bloom throughout the night.

Propagation Methods

Mirabilis jalapa is primarily propagated by seeds and roots (tubers). Seeds can be sown directly in late spring or early summer, with an optimal germination temperature of 20–25°C. Roots can be easily propagated by dividing and planting them in autumn or early spring.

Cultivation Methods
 - Environmental Conditions: Mirabilis jalapa thrives in both full sun and partial shade and can tolerate dry soil. However, it grows best in well-drained soil.
 - Watering: Be careful not to overwater and maintain appropriate soil moisture. It is generally recommended to water once or twice a week.
 - Fertilization: Applying organic fertilizer as a top dressing during spring and summer will result in abundant blooms.
 - Pruning: Pruning is not necessary, but removing withered flowers or leaves will help maintain a neat appearance.

Uses in the Garden
Four o'clock flowers are excellent for planting along garden edges, roadsides, or boundaries. Their diverse flower colors and fragrances enhance the aesthetics, and since they bloom even at night, they are particularly beautiful at night.

Important Pests and Diseases & Control Methods - Diseases:
- Powdery mildew: A disease characterized by white, powdery mold on the leaves. It can be prevented by ensuring good ventilation and avoiding excessive moisture.
 - Pests:
- Aphids: They suck plant sap and inhibit the development of leaves and flowers. Using natural insecticides or washing them off with soapy water is an effective method. - Snails and Slugs: Since they gnaw on leaves in wet environments, you can keep the environment dry and capture and remove them at night.

With proper care and prevention, four o'clock flowers can grow beautifully and healthily.

Plant Family	Mirabilis family
Height	60~100cm
Colors	Red, purple, yellow, white
Bloom Period	June to October
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-1°C

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