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Sunflower 'Russian Mammoth'
Helianthus annuus
'Russian Mammoth'
The sunflower 'Russian Mammoth' (Helianthus annuus 'Russian Mammoth') is a variety boasting large, striking flowers and is widely used for ornamental purposes in gardens. The following is a description of this variety's key characteristics and cultivation methods. Growth Characteristics - Size: 'Russian Mammoth' typically grows to 2 to 3 meters in height, and in large cases, can reach 4 meters. - Flower Size: The flower diameter reaches approximately 30 cm, making it very large. - Growth Rate: It grows rapidly, and flowers bloom about 75 to 90 days after planting the seeds. - Sunlight and Soil: It prefers full sun and well-drained soil. Propagation Methods - Seeds: It is primarily propagated by seeds. They can be planted directly outdoors in late spring or germinated indoors in early spring. - Planting Method: Seeds should be planted about 2.5 cm deep, spaced 45 to 60 cm apart. Cultivation Method - Watering: Water when the soil is dry, but avoid excessive moisture. - Fertilizer: It is recommended to apply nitrogen-rich fertilizer periodically to promote healthy growth. - Support: Since its large size can cause it to fall over in the wind, installing supports is helpful. Uses in the Garden - Landscaping: Its tall stature and large flowers serve as a focal point in the garden. - Nature Observation: As a plant favored by bees and birds, it is useful for observing the ecosystem. Important Pests and Diseases & Control Methods - Diseases: Rust and powdery mildew may occur. To prevent this, ensure good ventilation and use organic fungicides. - Pests: Pests include aphids and moths. Upon early detection, remove them by hand or control them using organic insecticides. - Early Prevention: Pests can be prevented through periodic observation and proper environmental management. As such, the 'Russian Mammoth' sunflower is a plant that allows you to enjoy its beautiful appearance in the garden for a long time with proper care and attention.
Plant Family
Asteraceae
Height
2.7~3.6m
Spread
60~120cm
Colors
yellow
Bloom Period
July~August
Water Needs
commonly
Exposure
Sunny
Freezing Resistance
-10°C
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