Rose Planting Methods and Maintenance
As the first of the three treasures of the courtyard, roses often come with the challenge of maintenance. During the planting process, the yellowing of leaves is particularly common, and mastering scientific management methods can bring the plant back to life. This article systematically sorts out the key links of rose cultivation to help growers build a complete maintenance knowledge system.
Creating a Growing Environment for Roses
Substrate Ratio and Container Selection
Using a mixture of humus soil and perlite (in a ratio of 3:1) can ensure good drainage and breathability. For pot cultivation, it is recommended to choose a ceramic pot with a diameter of over 35cm, with a 3cm thick layer of gravel at the bottom. For ground planting, the soil should be deeply turned over by 40cm and mixed with decomposed sheep manure to improve heavy soil texture.
Sunlight Control Plan
In spring and autumn, maintain full sunlight for 6-8 hours, and set up a 50% shade net from 11:00 to 15:00 in summer. In winter, southern-facing balconies need to be supplemented with light for 2 hours/day, using full-spectrum plant growth lights for better results.
Daily Maintenance Tips
Water Management Rhythm
Water thoroughly when the topsoil is dry by 2cm, and use the pot-lifting method to judge weight changes. In the rainy season, use a siphon drainage device to prevent waterlogging that can cause root rot. When the air humidity is below 40%, spray the leaves in the morning and evening, avoiding the blooming period.
Nutrition Supply Cycle
In the germination stage, apply a balanced fertilizer (20-20-20 NPK), and switch to a high-phosphorus formula (10-30-20) in the bud formation stage. Apply organic fertilizer every quarter with 150g of bone meal per plant, combined with EM bacterial solution to enhance absorption efficiency.
Diagnosing Yellow Leaf Issues
Environmental Adaptation Treatment
For newly purchased plants with yellow leaves concentrated at the base, keep 3-5 healthy leaves on the main branches and thin out the rest. Maintain an environment of 18-25°C during the slow growth period, and spray with brassinolide at 3000 times dilution, which can promote new buds within 2 weeks.
Pathological Symptom Identification
Iron deficiency yellowing shows a net-like vein pattern, and apply chelated iron fertilizer at 500 times dilution for root irrigation. Root rot disease causes yellowing of the entire plant and requires root pruning followed by soaking in carbendazim solution, then replanting in sterilized substrate.
By establishing a standardized maintenance process and early intervention for yellow leaves, roses can be kept in the best ornamental state. It is recommended to conduct a plant health check every month and record growth data to optimize the management plan.