Method and Timing of Rose Cutting Propagation
Roses, as one of the three treasures of the courtyard, use cutting propagation as the most economical and efficient method of seedling raising. Mastering the correct cutting time and scientific method can increase the survival rate of new seedlings by over 60%. This article will comprehensively analyze the key technologies of rose cutting from seasonal selection to detailed maintenance.
Best Timing for Rose Cutting Propagation
Golden Period of Spring and Autumn
In spring (March to May), when the ground temperature rises to 15℃, the plants enter the vigorous growth period, and cutting of tender buds can see callus formation in 7 days. In autumn (September to November), with a large temperature difference between day and night, the branches accumulate sufficient nutrients, and the root formation rate of hard wood cuttings can reach 85%.
Regional Differences Between North and South
In the north, it is suitable to choose the end of spring (mid-April) to avoid late spring frost. In the south, it can be advanced to early March. In autumn, the north needs to be completed before the first frost, while the Yangtze River Valley can continue to the end of November.
Four-step Practical Method for Rose Cutting Propagation
Optimal Selection of Strong Cuttings
Select semi-lignified branches of the current year, with a diameter of 4-6mm. Retain the top two compound leaves for photosynthesis, make a 45° oblique cut at the base to increase the water absorption area, and soak in rooting powder for 20 minutes to increase the survival rate by 30%.
Scientific Soil Mixture and Disinfection
Use a matrix of perlite: peat soil: vermiculite = 1:2:1, with a pH value controlled between 5.5-6.5. Use a 800x solution of carbendazim to thoroughly water and sterilize, preventing the occurrence of black shank disease.
Intelligent Temperature Control for Root Promotion
Set up a mini greenhouse, maintaining a daytime temperature of 25-28℃/nighttime temperature of 18-20℃. Use an intermittent misting device to maintain 85% air humidity. Ventilate for 1 hour every 3 days to prevent mold growth.
Observation of Root Development
After 15-20 days, gently pull the cutting to feel resistance, and after 45 days, new capillary roots can be seen. When the root length reaches 3cm, water with HB-101 vitality solution at 2000x concentration to promote the development of secondary roots.
Key Elements of Successful Rose Cutting Propagation
Maintaining the matrix moist but not waterlogged is crucial, and using the bottom seepage irrigation method is safer. During the strong sunlight period, 30% shading is required, and gradually increase light after new buds sprout. Regularly spray avermectin to prevent red spider mites, achieving a seedling raising success rate of 98%.
By accurately grasping the cutting timing and standardizing the operation process, even gardening beginners can easily cultivate strong rose seedlings. It is recommended to save the illustrations in this article for reference and share your cutting results in the comments section.