How to Care for Roses to Prevent Them from Dying
As one of the most popular ornamental flowers, rose care troubles countless gardening enthusiasts. Many people often encounter issues such as yellow leaves, withering, and failure to bloom during the care process. In fact, by mastering seven key techniques, you can keep your roses vibrant all year round.
One, Core Techniques for Soil-Grown Rose Care
1. Scientific Potting Soil Preparation
High-quality potting soil is the foundation for the survival of roses, and it is recommended to use a golden ratio of peat soil (40%) + perlite (30%) + humus soil (30%). New soil should be changed every spring, and a 3cm thick layer of ceramsite should be laid at the bottom of the pot to enhance drainage.
2. Precise Light Control
Roses need 4-6 hours of direct sunlight every day. It is recommended to use the "morning light + shading" mode: expose to full sunlight in the morning and use a 30% shading net after 12 noon. In winter, ensure full-time sunlight, and use supplemental lights to extend it to 8 hours.
3. Smart Water and Fertilizer Management
Use the "dry-wet cycle" watering method: water thoroughly when the top 3cm of soil is dry. Apply rose-specific slow-release fertilizer (NPK 18-18-21) every half month during the growing period, and switch to potassium dihydrogen phosphate (diluted 1500 times) for foliar application during the budding stage.
4. Disease and Pest Control System
Establish a "prevention-first" protection mechanism: spray the entire plant with neem oil (10ml/L) monthly to prevent pests, and spray mancozeb before the rainy season to prevent black spot disease. Treat with spirodiclofen (3000 times solution) immediately when red spiders are found, for three consecutive times.
Two, Emergency Care Plan for Hydroponic Roses
1. Dynamic Water Change Strategy
Hydroponic roses need to implement "three-degree management": maintain water temperature at 18-22°C, use purified water with a TDS value less than 50, change water and clean the container every 3 days. Adding 0.01% activated carbon in the summer can effectively inhibit bacterial growth.
2. Root Care Tips
Check the roots every time you change the water, and immediately cut diagonally at a 45-degree angle with a sanitized scissor if brown spots are found. Retain 3-5 internodes, apply rooting powder to the cut surface, and then re-hydroponic. Using a black container to avoid light can promote new root growth.
Through systematic care and management, even beginners can keep roses in a decorative state for more than 300 days. It is recommended to establish a care log, record each watering and fertilizing time, and adjust the care plan in a timely manner based on the plant's growth condition, allowing your rose garden to bloom throughout the four seasons.