Dutch roses in the greenhouse

Planting and growing Dutch roses in a greenhouse is one of the popular methods for producing high-quality and export flowers. Dutch roses are in high demand due to their attractive appearance, high durability, and diverse colors. The following are key points for growing this flower in a greenhouse:

1. Required environmental conditions

• Temperature: The ideal temperature for growing Dutch roses is around 20 to 25 degrees Celsius during the day and 15 to 18 degrees Celsius at night.
• Light: Dutch roses need a lot of indirect light. Natural light and an artificial lighting system should be used in the greenhouse in winter.
• Humidity: The appropriate relative humidity for Dutch roses is between 60 and 70 percent.

2. Soil and growing medium

• The soil should be light and well-drained.
• Soil pH: between 6 and 6.5 is suitable.
• Using a combination of garden soil, perlite and compost as a growing medium is recommended.

3. Planting

• Dutch rose grafting is done on resistant rootstocks.
• The planting distance between the plants should be 40 to 50 centimeters to ensure good air circulation.
• The appropriate height of the greenhouse should be at least 3 meters.

4. Irrigation

• Irrigation should be regular and adjusted depending on weather conditions.
• Use drip irrigation for better control.
• Over-watering can cause root rot, so the soil should be moderately moist.

5. Fertilization

• Use fertilizers rich in nitrogen, phosphorus and potassium.
• The fertilization program should be regular and adjusted at different stages of growth:
• Nitrogen for vegetative growth
• Phosphorus for root growth and flowering
• Potassium to increase flower quality

6. Pests and Diseases

Dutch roses in the greenhouse may be susceptible to the following pests and diseases:

• Aphids, mites and thrips: Control with appropriate insecticides.
• Root rot and powdery mildew: Control with proper drainage and use of fungicides.
• Proper ventilation of the greenhouse plays an important role in reducing fungal diseases.

7. Pruning and Care

• Regular pruning of branches is essential to increase air flow and stimulate flowering.
• Removing wilted flowers and yellow leaves helps improve plant growth.

8. Market and Sales

Dutch roses are suitable for export and sale in domestic and foreign markets due to their quality and beauty. Major markets for this flower include florist shops, special occasions (weddings and ceremonies), and exports to neighboring countries.

Additional Tips:

Dutch roses can also be grown in hydroponic systems, which have higher yields. The initial investment for this system is higher, but the quality of the product and the production rate will be significantly improved.