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Willow leaf sunflower
Helianthus salicifolius
The Willow-leaved Sunflower (Helianthus salicifolius) is a much-loved garden plant due to its unique appearance and beautiful flowers. The following is general information about the Willow-leaved Sunflower. Growth Characteristics - Growing Environment: The Willow-leaved Sunflower thrives in sunny locations and prefers well-drained soil. - Size: It can grow to a height of approximately 1.5m to 3m upon maturity. - Flowering Season: It primarily blooms from summer to autumn. - Features: The stems are slender and long, and the leaves are thin and elongated, resembling willow leaves. Propagation Methods - Seeds: In the spring, sow seeds directly in pots or greenhouses to induce germination. Germination rates are higher under direct sunlight. - Division: Since the roots are relatively strong, you can attempt propagation by separating old clumps in the spring or autumn. Cultivation Methods - Planting: Select well-draining soil for planting. Caution is required as excessive soil fertility can cause the stems to grow too long. - Watering: Water sufficiently during dry periods, but be careful not to overwater. - Fertilizer: Generally, additional fertilizer is not necessary in fertile soil, but general horticultural fertilizers can be used during the growing season. Uses in the Garden - Landscape Planting: Its tall, beautiful flower and leaf shapes add variety to the landscape. It is effective when planted along hedges or boundaries. - Natural Gardens: It fits well with garden designs that create a natural feel. Important Pests and Control Methods - Diseases: It is generally resistant to disease, but root rot may occur if the soil is overwatered. Proper drainage management is important. - Pests: Aphids may appear on the leaves; they can be removed by hand or controlled using soapy water. - Prevention: Create a dry and well-ventilated environment to promote healthy growth. If you understand these characteristics and manage them properly, the Willow-leaf Sunflower can be an attractive element in your garden.
Plant Family
Asteraceae
Height
2.4~3m
Spread
30~90cm
Colors
yellow
Bloom Period
August
Water Needs
commonly
Exposure
Sunny
Freezing Resistance
-30°C
Willow-leaf sunflower 'First Light'
Helianthus salicifolius
'First Light'
Sunflower 'Lemon Queen'
Helianthus laetiflorus
'Lemon Queen'