Sunflower (Ornamental) Growing Guide
Annual flower grown commercially for cut flower markets. Ornamental varieties are bred for multiple stems, varied colors, and pollen-free blooms to prevent staining. Distinct from oilseed sunflower.
Growing Conditions
Soil Requirements
Soil Type & pH
Best soil types: loam, sandy loam, clay loam
pH range: 6 - 7.5 (optimal: 6.5)
Drainage: good
Nutrient Needs (N-P-K)
Planting Guide
Yield & Economics
Common Pests & Diseases
Common Pests
- sunflower moth
- aphids
- cutworms
Common Diseases
- sclerotinia head rot
- downy mildew
- rust
Use to identify issues early and prevent crop losses.
Growing Tips
Succession plant every 10-14 days from spring through midsummer for continuous cut flower supply throughout the season.
Select pollenless (male-sterile) varieties for cut flower production — pollen-free blooms avoid staining clothes and furniture, commanding premium prices.
Harvest when ray petals are just beginning to lift off the disc; cut stems in the morning and place immediately in water with floral preservative.
Frequently Asked Questions
How long does Sunflower (Ornamental) take to grow?
Sunflower (Ornamental) typically takes 55 days from planting to harvest. Seeds germinate in about 7 days. The best planting season is spring, summer.
What soil does Sunflower (Ornamental) need?
Sunflower (Ornamental) grows best in loam, sandy loam, clay loam soil with a pH of 6-7.5. Good drainage is required.
What temperature does Sunflower (Ornamental) need?
Sunflower (Ornamental) grows best at 18-30°C. Frost tolerance: none. Heat tolerance: high.
What is the expected yield for Sunflower (Ornamental)?
Sunflower (Ornamental) yields approximately 200,000 stems/hectare under good conditions. Multiple harvests per year are possible (3).
More Ornamental
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